21361320

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:389

約数の個数: 160

約数和(自身を含む): 75794400

約数和(自身を除く): 54433080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 81, 90, 95, 108, 114, 120, 135, 152, 162, 171, 180, 190, 216, 228, 270, 285, 324, 342, 347, 360, 380, 405, 456, 513, 540, 570, 648, 684, 694, 760, 810, 855, 1026, 1041, 1080, 1140, 1368, 1388, 1539, 1620, 1710, 1735, 2052, 2082, 2280, 2565, 2776, 3078, 3123, 3240, 3420, 3470, 4104, 4164, 5130, 5205, 6156, 6246, 6593, 6840, 6940, 7695, 8328, 9369, 10260, 10410, 12312, 12492, 13186, 13880, 15390, 15615, 18738, 19779, 20520, 20820, 24984, 26372, 28107, 30780, 31230, 32965, 37476, 39558, 41640, 46845, 52744, 56214, 59337, 61560, 62460, 65930, 74952, 79116, 93690, 98895, 112428, 118674, 124920, 131860, 140535, 158232, 178011, 187380, 197790, 224856, 237348, 263720, 281070, 296685, 356022, 374760, 395580, 474696, 534033, 562140, 593370, 712044, 791160, 890055, 1068066, 1124280, 1186740, 1424088, 1780110, 2136132, 2373480, 2670165, 3560220, 4272264, 5340330, 7120440, 10680660, 21361320]

約数ペア:

[(1, 21361320), (2, 10680660), (3, 7120440), (4, 5340330), (5, 4272264), (6, 3560220), (8, 2670165), (9, 2373480), (10, 2136132), (12, 1780110), (15, 1424088), (18, 1186740), (19, 1124280), (20, 1068066), (24, 890055), (27, 791160), (30, 712044), (36, 593370), (38, 562140), (40, 534033), (45, 474696), (54, 395580), (57, 374760), (60, 356022), (72, 296685), (76, 281070), (81, 263720), (90, 237348), (95, 224856), (108, 197790), (114, 187380), (120, 178011), (135, 158232), (152, 140535), (162, 131860), (171, 124920), (180, 118674), (190, 112428), (216, 98895), (228, 93690), (270, 79116), (285, 74952), (324, 65930), (342, 62460), (347, 61560), (360, 59337), (380, 56214), (405, 52744), (456, 46845), (513, 41640), (540, 39558), (570, 37476), (648, 32965), (684, 31230), (694, 30780), (760, 28107), (810, 26372), (855, 24984), (1026, 20820), (1041, 20520), (1080, 19779), (1140, 18738), (1368, 15615), (1388, 15390), (1539, 13880), (1620, 13186), (1710, 12492), (1735, 12312), (2052, 10410), (2082, 10260), (2280, 9369), (2565, 8328), (2776, 7695), (3078, 6940), (3123, 6840), (3240, 6593), (3420, 6246), (3470, 6156), (4104, 5205), (4164, 5130)]