21735656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2251}}^1$

素因数の和:2345

約数の個数: 32

約数和(自身を含む): 43778880

約数和(自身を除く): 22043224

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2251, 2414, 4502, 4828, 9004, 9656, 18008, 38267, 76534, 153068, 159821, 306136, 319642, 639284, 1278568, 2716957, 5433914, 10867828, 21735656]

約数ペア:

[(1, 21735656), (2, 10867828), (4, 5433914), (8, 2716957), (17, 1278568), (34, 639284), (68, 319642), (71, 306136), (136, 159821), (142, 153068), (284, 76534), (568, 38267), (1207, 18008), (2251, 9656), (2414, 9004), (4502, 4828)]