21027660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3613}}^1$

素因数の和:3722

約数の個数: 48

約数和(自身を含む): 59500896

約数和(自身を除く): 38473236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3613, 5820, 7226, 10839, 14452, 18065, 21678, 36130, 43356, 54195, 72260, 108390, 216780, 350461, 700922, 1051383, 1401844, 1752305, 2102766, 3504610, 4205532, 5256915, 7009220, 10513830, 21027660]

約数ペア:

[(1, 21027660), (2, 10513830), (3, 7009220), (4, 5256915), (5, 4205532), (6, 3504610), (10, 2102766), (12, 1752305), (15, 1401844), (20, 1051383), (30, 700922), (60, 350461), (97, 216780), (194, 108390), (291, 72260), (388, 54195), (485, 43356), (582, 36130), (970, 21678), (1164, 18065), (1455, 14452), (1940, 10839), (2910, 7226), (3613, 5820)]