21938820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6899}}^1$

素因数の和:6964

約数の個数: 48

約数和(自身を含む): 62596800

約数和(自身を除く): 40657980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6899, 13798, 20697, 27596, 34495, 41394, 68990, 82788, 103485, 137980, 206970, 365647, 413940, 731294, 1096941, 1462588, 1828235, 2193882, 3656470, 4387764, 5484705, 7312940, 10969410, 21938820]

約数ペア:

[(1, 21938820), (2, 10969410), (3, 7312940), (4, 5484705), (5, 4387764), (6, 3656470), (10, 2193882), (12, 1828235), (15, 1462588), (20, 1096941), (30, 731294), (53, 413940), (60, 365647), (106, 206970), (159, 137980), (212, 103485), (265, 82788), (318, 68990), (530, 41394), (636, 34495), (795, 27596), (1060, 20697), (1590, 13798), (3180, 6899)]