21305220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355087}}^1$

素因数の和:355099

約数の個数: 24

約数和(自身を含む): 59654784

約数和(自身を除く): 38349564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355087, 710174, 1065261, 1420348, 1775435, 2130522, 3550870, 4261044, 5326305, 7101740, 10652610, 21305220]

約数ペア:

[(1, 21305220), (2, 10652610), (3, 7101740), (4, 5326305), (5, 4261044), (6, 3550870), (10, 2130522), (12, 1775435), (15, 1420348), (20, 1065261), (30, 710174), (60, 355087)]