21865592

素因数分解:

$2^3\times 7^1\times {\mathrm{557}}^1\times {\mathrm{701}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 47005920

約数和(自身を除く): 25140328

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 557, 701, 1114, 1402, 2228, 2804, 3899, 4456, 4907, 5608, 7798, 9814, 15596, 19628, 31192, 39256, 390457, 780914, 1561828, 2733199, 3123656, 5466398, 10932796, 21865592]

約数ペア:

[(1, 21865592), (2, 10932796), (4, 5466398), (7, 3123656), (8, 2733199), (14, 1561828), (28, 780914), (56, 390457), (557, 39256), (701, 31192), (1114, 19628), (1402, 15596), (2228, 9814), (2804, 7798), (3899, 5608), (4456, 4907)]