21722680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11083}}^1$

素因数の和:11108

約数の個数: 48

約数和(自身を含む): 56860920

約数和(自身を除く): 35138240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 11083, 22166, 44332, 55415, 77581, 88664, 110830, 155162, 221660, 310324, 387905, 443320, 543067, 620648, 775810, 1086134, 1551620, 2172268, 2715335, 3103240, 4344536, 5430670, 10861340, 21722680]

約数ペア:

[(1, 21722680), (2, 10861340), (4, 5430670), (5, 4344536), (7, 3103240), (8, 2715335), (10, 2172268), (14, 1551620), (20, 1086134), (28, 775810), (35, 620648), (40, 543067), (49, 443320), (56, 387905), (70, 310324), (98, 221660), (140, 155162), (196, 110830), (245, 88664), (280, 77581), (392, 55415), (490, 44332), (980, 22166), (1960, 11083)]