20941570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3929}}^1$

素因数の和:3990

約数の個数: 32

約数和(自身を含む): 41595120

約数和(自身を除く): 20653550

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 3929, 5330, 7858, 19645, 39290, 51077, 102154, 161089, 255385, 322178, 510770, 805445, 1610890, 2094157, 4188314, 10470785, 20941570]

約数ペア:

[(1, 20941570), (2, 10470785), (5, 4188314), (10, 2094157), (13, 1610890), (26, 805445), (41, 510770), (65, 322178), (82, 255385), (130, 161089), (205, 102154), (410, 51077), (533, 39290), (1066, 19645), (2665, 7858), (3929, 5330)]