21977056

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:667

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 24562304

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 71, 136, 142, 272, 284, 544, 568, 569, 1136, 1138, 1207, 2272, 2276, 2414, 4552, 4828, 9104, 9656, 9673, 18208, 19312, 19346, 38624, 38692, 40399, 77384, 80798, 154768, 161596, 309536, 323192, 646384, 686783, 1292768, 1373566, 2747132, 5494264, 10988528, 21977056]

約数ペア:

[(1, 21977056), (2, 10988528), (4, 5494264), (8, 2747132), (16, 1373566), (17, 1292768), (32, 686783), (34, 646384), (68, 323192), (71, 309536), (136, 161596), (142, 154768), (272, 80798), (284, 77384), (544, 40399), (568, 38692), (569, 38624), (1136, 19346), (1138, 19312), (1207, 18208), (2272, 9673), (2276, 9656), (2414, 9104), (4552, 4828)]