21821987511

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{136979}}^1$

素因数の和:137587

約数の個数: 24

約数和(自身を含む): 32594664960

約数和(自身を除く): 10772677449

約数列:

[1, 3, 9, 31, 93, 279, 571, 1713, 5139, 17701, 53103, 136979, 159309, 410937, 1232811, 4246349, 12739047, 38217141, 78215009, 234645027, 703935081, 2424665279, 7273995837, 21821987511]

約数ペア:

[(1, 21821987511), (3, 7273995837), (9, 2424665279), (31, 703935081), (93, 234645027), (279, 78215009), (571, 38217141), (1713, 12739047), (5139, 4246349), (17701, 1232811), (53103, 410937), (136979, 159309)]