21105133020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{374603}}^1$

素因数の和:374931

約数の個数: 72

約数和(自身を含む): 64223608176

約数和(自身を除く): 43118475156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 313, 626, 939, 1252, 1565, 1878, 2817, 3130, 3756, 4695, 5634, 6260, 9390, 11268, 14085, 18780, 28170, 56340, 374603, 749206, 1123809, 1498412, 1873015, 2247618, 3371427, 3746030, 4495236, 5619045, 6742854, 7492060, 11238090, 13485708, 16857135, 22476180, 33714270, 67428540, 117250739, 234501478, 351752217, 469002956, 586253695, 703504434, 1055256651, 1172507390, 1407008868, 1758761085, 2110513302, 2345014780, 3517522170, 4221026604, 5276283255, 7035044340, 10552566510, 21105133020]

約数ペア:

[(1, 21105133020), (2, 10552566510), (3, 7035044340), (4, 5276283255), (5, 4221026604), (6, 3517522170), (9, 2345014780), (10, 2110513302), (12, 1758761085), (15, 1407008868), (18, 1172507390), (20, 1055256651), (30, 703504434), (36, 586253695), (45, 469002956), (60, 351752217), (90, 234501478), (180, 117250739), (313, 67428540), (626, 33714270), (939, 22476180), (1252, 16857135), (1565, 13485708), (1878, 11238090), (2817, 7492060), (3130, 6742854), (3756, 5619045), (4695, 4495236), (5634, 3746030), (6260, 3371427), (9390, 2247618), (11268, 1873015), (14085, 1498412), (18780, 1123809), (28170, 749206), (56340, 374603)]