21351240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{467}}^1$

素因数の和:611

約数の個数: 96

約数和(自身を含む): 70087680

約数和(自身を除く): 48736440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 127, 180, 254, 360, 381, 467, 508, 635, 762, 934, 1016, 1143, 1270, 1401, 1524, 1868, 1905, 2286, 2335, 2540, 2802, 3048, 3736, 3810, 4203, 4572, 4670, 5080, 5604, 5715, 7005, 7620, 8406, 9144, 9340, 11208, 11430, 14010, 15240, 16812, 18680, 21015, 22860, 28020, 33624, 42030, 45720, 56040, 59309, 84060, 118618, 168120, 177927, 237236, 296545, 355854, 474472, 533781, 593090, 711708, 889635, 1067562, 1186180, 1423416, 1779270, 2135124, 2372360, 2668905, 3558540, 4270248, 5337810, 7117080, 10675620, 21351240]

約数ペア:

[(1, 21351240), (2, 10675620), (3, 7117080), (4, 5337810), (5, 4270248), (6, 3558540), (8, 2668905), (9, 2372360), (10, 2135124), (12, 1779270), (15, 1423416), (18, 1186180), (20, 1067562), (24, 889635), (30, 711708), (36, 593090), (40, 533781), (45, 474472), (60, 355854), (72, 296545), (90, 237236), (120, 177927), (127, 168120), (180, 118618), (254, 84060), (360, 59309), (381, 56040), (467, 45720), (508, 42030), (635, 33624), (762, 28020), (934, 22860), (1016, 21015), (1143, 18680), (1270, 16812), (1401, 15240), (1524, 14010), (1868, 11430), (1905, 11208), (2286, 9340), (2335, 9144), (2540, 8406), (2802, 7620), (3048, 7005), (3736, 5715), (3810, 5604), (4203, 5080), (4572, 4670)]