21511910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10597}}^1$

素因数の和:10640

約数の個数: 32

約数和(自身を含む): 45783360

約数和(自身を除く): 24271450

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10597, 21194, 52985, 74179, 105970, 148358, 307313, 370895, 614626, 741790, 1536565, 2151191, 3073130, 4302382, 10755955, 21511910]

約数ペア:

[(1, 21511910), (2, 10755955), (5, 4302382), (7, 3073130), (10, 2151191), (14, 1536565), (29, 741790), (35, 614626), (58, 370895), (70, 307313), (145, 148358), (203, 105970), (290, 74179), (406, 52985), (1015, 21194), (2030, 10597)]