17680117

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 22982400

約数和(自身を除く): 5302283

約数列:

[1, 7, 13, 37, 59, 89, 91, 259, 413, 481, 623, 767, 1157, 2183, 3293, 3367, 5251, 5369, 8099, 15281, 23051, 28379, 36757, 42809, 68263, 194287, 198653, 299663, 477841, 1360009, 2525731, 17680117]

約数ペア:

[(1, 17680117), (7, 2525731), (13, 1360009), (37, 477841), (59, 299663), (89, 198653), (91, 194287), (259, 68263), (413, 42809), (481, 36757), (623, 28379), (767, 23051), (1157, 15281), (2183, 8099), (3293, 5369), (3367, 5251)]