21090789830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10091287}}^1$

素因数の和:10091324

約数の個数: 32

約数和(自身を含む): 43594364160

約数和(自身を除く): 22503574330

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10091287, 20182574, 50456435, 100912870, 111004157, 191734453, 222008314, 383468906, 555020785, 958672265, 1110041570, 1917344530, 2109078983, 4218157966, 10545394915, 21090789830]

約数ペア:

[(1, 21090789830), (2, 10545394915), (5, 4218157966), (10, 2109078983), (11, 1917344530), (19, 1110041570), (22, 958672265), (38, 555020785), (55, 383468906), (95, 222008314), (110, 191734453), (190, 111004157), (209, 100912870), (418, 50456435), (1045, 20182574), (2090, 10091287)]