21352010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1031}}^1$

素因数の和:1166

約数の個数: 32

約数和(自身を含む): 40867200

約数和(自身を除く): 19515190

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 1031, 1090, 2062, 2071, 4142, 5155, 10310, 10355, 19589, 20710, 39178, 97945, 112379, 195890, 224758, 561895, 1123790, 2135201, 4270402, 10676005, 21352010]

約数ペア:

[(1, 21352010), (2, 10676005), (5, 4270402), (10, 2135201), (19, 1123790), (38, 561895), (95, 224758), (109, 195890), (190, 112379), (218, 97945), (545, 39178), (1031, 20710), (1090, 19589), (2062, 10355), (2071, 10310), (4142, 5155)]