18797828

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^2\times {\mathrm{239}}^1$

素因数の和:356

約数の個数: 36

約数和(自身を含む): 38478720

約数和(自身を除く): 19680892

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 239, 371, 478, 742, 956, 1484, 1673, 2809, 3346, 5618, 6692, 11236, 12667, 19663, 25334, 39326, 50668, 78652, 88669, 177338, 354676, 671351, 1342702, 2685404, 4699457, 9398914, 18797828]

約数ペア:

[(1, 18797828), (2, 9398914), (4, 4699457), (7, 2685404), (14, 1342702), (28, 671351), (53, 354676), (106, 177338), (212, 88669), (239, 78652), (371, 50668), (478, 39326), (742, 25334), (956, 19663), (1484, 12667), (1673, 11236), (2809, 6692), (3346, 5618)]