21739060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5009}}^1$

素因数の和:5056

約数の個数: 48

約数和(自身を含む): 53867520

約数和(自身を除く): 32128460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 5009, 10018, 20036, 25045, 35063, 50090, 70126, 100180, 140252, 155279, 175315, 310558, 350630, 621116, 701260, 776395, 1086953, 1552790, 2173906, 3105580, 4347812, 5434765, 10869530, 21739060]

約数ペア:

[(1, 21739060), (2, 10869530), (4, 5434765), (5, 4347812), (7, 3105580), (10, 2173906), (14, 1552790), (20, 1086953), (28, 776395), (31, 701260), (35, 621116), (62, 350630), (70, 310558), (124, 175315), (140, 155279), (155, 140252), (217, 100180), (310, 70126), (434, 50090), (620, 35063), (868, 25045), (1085, 20036), (2170, 10018), (4340, 5009)]