21244808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5521}}^1$

素因数の和:5577

約数の個数: 32

約数和(自身を含む): 44065560

約数和(自身を除く): 22820752

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 5521, 11042, 22084, 44168, 71773, 143546, 204277, 287092, 408554, 574184, 817108, 1634216, 2655601, 5311202, 10622404, 21244808]

約数ペア:

[(1, 21244808), (2, 10622404), (4, 5311202), (8, 2655601), (13, 1634216), (26, 817108), (37, 574184), (52, 408554), (74, 287092), (104, 204277), (148, 143546), (296, 71773), (481, 44168), (962, 22084), (1924, 11042), (3848, 5521)]