20917976638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{281}}^1\times {\mathrm{9907}}^1$

素因数の和:10237

約数の個数: 48

約数和(自身を含む): 36026558064

約数和(自身を除く): 15108581426

約数列:

[1, 2, 13, 17, 26, 34, 221, 281, 289, 442, 562, 578, 3653, 3757, 4777, 7306, 7514, 9554, 9907, 19814, 62101, 81209, 124202, 128791, 162418, 168419, 257582, 336838, 1055717, 2111434, 2189447, 2783867, 2863123, 4378894, 5567734, 5726246, 36190271, 37220599, 47325739, 72380542, 74441198, 94651478, 615234607, 804537563, 1230469214, 1609075126, 10458988319, 20917976638]

約数ペア:

[(1, 20917976638), (2, 10458988319), (13, 1609075126), (17, 1230469214), (26, 804537563), (34, 615234607), (221, 94651478), (281, 74441198), (289, 72380542), (442, 47325739), (562, 37220599), (578, 36190271), (3653, 5726246), (3757, 5567734), (4777, 4378894), (7306, 2863123), (7514, 2783867), (9554, 2189447), (9907, 2111434), (19814, 1055717), (62101, 336838), (81209, 257582), (124202, 168419), (128791, 162418)]