21463510

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 18194090

約数列:

[1, 2, 5, 10, 79, 101, 158, 202, 269, 395, 505, 538, 790, 1010, 1345, 2690, 7979, 15958, 21251, 27169, 39895, 42502, 54338, 79790, 106255, 135845, 212510, 271690, 2146351, 4292702, 10731755, 21463510]

約数ペア:

[(1, 21463510), (2, 10731755), (5, 4292702), (10, 2146351), (79, 271690), (101, 212510), (158, 135845), (202, 106255), (269, 79790), (395, 54338), (505, 42502), (538, 39895), (790, 27169), (1010, 21251), (1345, 15958), (2690, 7979)]