21077890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{811}}^1$

素因数の和:954

約数の個数: 32

約数和(自身を含む): 39989376

約数和(自身を除く): 18911486

約数列:

[1, 2, 5, 10, 23, 46, 113, 115, 226, 230, 565, 811, 1130, 1622, 2599, 4055, 5198, 8110, 12995, 18653, 25990, 37306, 91643, 93265, 183286, 186530, 458215, 916430, 2107789, 4215578, 10538945, 21077890]

約数ペア:

[(1, 21077890), (2, 10538945), (5, 4215578), (10, 2107789), (23, 916430), (46, 458215), (113, 186530), (115, 183286), (226, 93265), (230, 91643), (565, 37306), (811, 25990), (1130, 18653), (1622, 12995), (2599, 8110), (4055, 5198)]