21648671820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{111053}}^1$

素因数の和:111109

約数の個数: 144

約数和(自身を含む): 71083444320

約数和(自身を除く): 49434772500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 361, 380, 513, 540, 570, 684, 722, 855, 1026, 1083, 1140, 1444, 1710, 1805, 2052, 2166, 2565, 3249, 3420, 3610, 4332, 5130, 5415, 6498, 7220, 9747, 10260, 10830, 12996, 16245, 19494, 21660, 32490, 38988, 48735, 64980, 97470, 111053, 194940, 222106, 333159, 444212, 555265, 666318, 999477, 1110530, 1332636, 1665795, 1998954, 2110007, 2221060, 2998431, 3331590, 3997908, 4220014, 4997385, 5996862, 6330021, 6663180, 8440028, 9994770, 10550035, 11993724, 12660042, 14992155, 18990063, 19989540, 21100070, 25320084, 29984310, 31650105, 37980126, 40090133, 42200140, 56970189, 59968620, 63300210, 75960252, 80180266, 94950315, 113940378, 120270399, 126600420, 160360532, 189900630, 200450665, 227880756, 240540798, 284850945, 360811197, 379801260, 400901330, 481081596, 569701890, 601351995, 721622394, 801802660, 1082433591, 1139403780, 1202703990, 1443244788, 1804055985, 2164867182, 2405407980, 3608111970, 4329734364, 5412167955, 7216223940, 10824335910, 21648671820]

約数ペア:

[(1, 21648671820), (2, 10824335910), (3, 7216223940), (4, 5412167955), (5, 4329734364), (6, 3608111970), (9, 2405407980), (10, 2164867182), (12, 1804055985), (15, 1443244788), (18, 1202703990), (19, 1139403780), (20, 1082433591), (27, 801802660), (30, 721622394), (36, 601351995), (38, 569701890), (45, 481081596), (54, 400901330), (57, 379801260), (60, 360811197), (76, 284850945), (90, 240540798), (95, 227880756), (108, 200450665), (114, 189900630), (135, 160360532), (171, 126600420), (180, 120270399), (190, 113940378), (228, 94950315), (270, 80180266), (285, 75960252), (342, 63300210), (361, 59968620), (380, 56970189), (513, 42200140), (540, 40090133), (570, 37980126), (684, 31650105), (722, 29984310), (855, 25320084), (1026, 21100070), (1083, 19989540), (1140, 18990063), (1444, 14992155), (1710, 12660042), (1805, 11993724), (2052, 10550035), (2166, 9994770), (2565, 8440028), (3249, 6663180), (3420, 6330021), (3610, 5996862), (4332, 4997385), (5130, 4220014), (5415, 3997908), (6498, 3331590), (7220, 2998431), (9747, 2221060), (10260, 2110007), (10830, 1998954), (12996, 1665795), (16245, 1332636), (19494, 1110530), (21660, 999477), (32490, 666318), (38988, 555265), (48735, 444212), (64980, 333159), (97470, 222106), (111053, 194940)]