21891708

素因数分解:

$2^2\times 3^4\times {\mathrm{67567}}^1$

素因数の和:67583

約数の個数: 30

約数和(自身を含む): 57230096

約数和(自身を除く): 35338388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 67567, 135134, 202701, 270268, 405402, 608103, 810804, 1216206, 1824309, 2432412, 3648618, 5472927, 7297236, 10945854, 21891708]

約数ペア:

[(1, 21891708), (2, 10945854), (3, 7297236), (4, 5472927), (6, 3648618), (9, 2432412), (12, 1824309), (18, 1216206), (27, 810804), (36, 608103), (54, 405402), (81, 270268), (108, 202701), (162, 135134), (324, 67567)]