21821410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{733}}^1$

素因数の和:982

約数の個数: 32

約数和(自身を含む): 42542640

約数和(自身を除く): 20721230

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 229, 458, 733, 1145, 1466, 2290, 2977, 3665, 5954, 7330, 9529, 14885, 19058, 29770, 47645, 95290, 167857, 335714, 839285, 1678570, 2182141, 4364282, 10910705, 21821410]

約数ペア:

[(1, 21821410), (2, 10910705), (5, 4364282), (10, 2182141), (13, 1678570), (26, 839285), (65, 335714), (130, 167857), (229, 95290), (458, 47645), (733, 29770), (1145, 19058), (1466, 14885), (2290, 9529), (2977, 7330), (3665, 5954)]