18998588

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21643972

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 167, 238, 239, 334, 476, 478, 668, 956, 1169, 1673, 2338, 2839, 3346, 4063, 4676, 5678, 6692, 8126, 11356, 16252, 19873, 28441, 39746, 39913, 56882, 79492, 79826, 113764, 159652, 279391, 558782, 678521, 1117564, 1357042, 2714084, 4749647, 9499294, 18998588]

約数ペア:

[(1, 18998588), (2, 9499294), (4, 4749647), (7, 2714084), (14, 1357042), (17, 1117564), (28, 678521), (34, 558782), (68, 279391), (119, 159652), (167, 113764), (238, 79826), (239, 79492), (334, 56882), (476, 39913), (478, 39746), (668, 28441), (956, 19873), (1169, 16252), (1673, 11356), (2338, 8126), (2839, 6692), (3346, 5678), (4063, 4676)]