21695468

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{8623}}^1$

素因数の和:8681

約数の個数: 24

約数和(自身を含む): 41291712

約数和(自身を除く): 19596244

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 2516, 8623, 17246, 34492, 146591, 293182, 319051, 586364, 638102, 1276204, 5423867, 10847734, 21695468]

約数ペア:

[(1, 21695468), (2, 10847734), (4, 5423867), (17, 1276204), (34, 638102), (37, 586364), (68, 319051), (74, 293182), (148, 146591), (629, 34492), (1258, 17246), (2516, 8623)]