20978022

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4409}}^1$

素因数の和:4488

約数の個数: 32

約数和(自身を含む): 45934560

約数和(自身を除く): 24956538

約数列:

[1, 2, 3, 6, 13, 26, 39, 61, 78, 122, 183, 366, 793, 1586, 2379, 4409, 4758, 8818, 13227, 26454, 57317, 114634, 171951, 268949, 343902, 537898, 806847, 1613694, 3496337, 6992674, 10489011, 20978022]

約数ペア:

[(1, 20978022), (2, 10489011), (3, 6992674), (6, 3496337), (13, 1613694), (26, 806847), (39, 537898), (61, 343902), (78, 268949), (122, 171951), (183, 114634), (366, 57317), (793, 26454), (1586, 13227), (2379, 8818), (4409, 4758)]