21101000

素因数分解:

$2^3\times 5^3\times {\mathrm{21101}}^1$

素因数の和:21122

約数の個数: 32

約数和(自身を含む): 49378680

約数和(自身を除く): 28277680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 21101, 42202, 84404, 105505, 168808, 211010, 422020, 527525, 844040, 1055050, 2110100, 2637625, 4220200, 5275250, 10550500, 21101000]

約数ペア:

[(1, 21101000), (2, 10550500), (4, 5275250), (5, 4220200), (8, 2637625), (10, 2110100), (20, 1055050), (25, 844040), (40, 527525), (50, 422020), (100, 211010), (125, 168808), (200, 105505), (250, 84404), (500, 42202), (1000, 21101)]