21415530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{757}}^1$

素因数の和:831

約数の個数: 64

約数和(自身を含む): 55012608

約数和(自身を除く): 33597078

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 41, 46, 69, 82, 115, 123, 138, 205, 230, 246, 345, 410, 615, 690, 757, 943, 1230, 1514, 1886, 2271, 2829, 3785, 4542, 4715, 5658, 7570, 9430, 11355, 14145, 17411, 22710, 28290, 31037, 34822, 52233, 62074, 87055, 93111, 104466, 155185, 174110, 186222, 261165, 310370, 465555, 522330, 713851, 931110, 1427702, 2141553, 3569255, 4283106, 7138510, 10707765, 21415530]

約数ペア:

[(1, 21415530), (2, 10707765), (3, 7138510), (5, 4283106), (6, 3569255), (10, 2141553), (15, 1427702), (23, 931110), (30, 713851), (41, 522330), (46, 465555), (69, 310370), (82, 261165), (115, 186222), (123, 174110), (138, 155185), (205, 104466), (230, 93111), (246, 87055), (345, 62074), (410, 52233), (615, 34822), (690, 31037), (757, 28290), (943, 22710), (1230, 17411), (1514, 14145), (1886, 11355), (2271, 9430), (2829, 7570), (3785, 5658), (4542, 4715)]