21117360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:467

約数の個数: 160

約数和(自身を含む): 75352320

約数和(自身を除く): 54234960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 33, 38, 40, 44, 48, 55, 57, 60, 66, 76, 80, 88, 95, 110, 114, 120, 132, 152, 165, 176, 190, 209, 220, 228, 240, 264, 285, 304, 330, 380, 418, 421, 440, 456, 528, 570, 627, 660, 760, 836, 842, 880, 912, 1045, 1140, 1254, 1263, 1320, 1520, 1672, 1684, 2090, 2105, 2280, 2508, 2526, 2640, 3135, 3344, 3368, 4180, 4210, 4560, 4631, 5016, 5052, 6270, 6315, 6736, 7999, 8360, 8420, 9262, 10032, 10104, 12540, 12630, 13893, 15998, 16720, 16840, 18524, 20208, 23155, 23997, 25080, 25260, 27786, 31996, 33680, 37048, 39995, 46310, 47994, 50160, 50520, 55572, 63992, 69465, 74096, 79990, 87989, 92620, 95988, 101040, 111144, 119985, 127984, 138930, 159980, 175978, 185240, 191976, 222288, 239970, 263967, 277860, 319960, 351956, 370480, 383952, 439945, 479940, 527934, 555720, 639920, 703912, 879890, 959880, 1055868, 1111440, 1319835, 1407824, 1759780, 1919760, 2111736, 2639670, 3519560, 4223472, 5279340, 7039120, 10558680, 21117360]

約数ペア:

[(1, 21117360), (2, 10558680), (3, 7039120), (4, 5279340), (5, 4223472), (6, 3519560), (8, 2639670), (10, 2111736), (11, 1919760), (12, 1759780), (15, 1407824), (16, 1319835), (19, 1111440), (20, 1055868), (22, 959880), (24, 879890), (30, 703912), (33, 639920), (38, 555720), (40, 527934), (44, 479940), (48, 439945), (55, 383952), (57, 370480), (60, 351956), (66, 319960), (76, 277860), (80, 263967), (88, 239970), (95, 222288), (110, 191976), (114, 185240), (120, 175978), (132, 159980), (152, 138930), (165, 127984), (176, 119985), (190, 111144), (209, 101040), (220, 95988), (228, 92620), (240, 87989), (264, 79990), (285, 74096), (304, 69465), (330, 63992), (380, 55572), (418, 50520), (421, 50160), (440, 47994), (456, 46310), (528, 39995), (570, 37048), (627, 33680), (660, 31996), (760, 27786), (836, 25260), (842, 25080), (880, 23997), (912, 23155), (1045, 20208), (1140, 18524), (1254, 16840), (1263, 16720), (1320, 15998), (1520, 13893), (1672, 12630), (1684, 12540), (2090, 10104), (2105, 10032), (2280, 9262), (2508, 8420), (2526, 8360), (2640, 7999), (3135, 6736), (3344, 6315), (3368, 6270), (4180, 5052), (4210, 5016), (4560, 4631)]