21137082160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8523017}}^1$

素因数の和:8523061

約数の個数: 40

約数和(自身を含む): 50729003136

約数和(自身を除く): 29591920976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8523017, 17046034, 34092068, 42615085, 68184136, 85230170, 136368272, 170460340, 264213527, 340920680, 528427054, 681841360, 1056854108, 1321067635, 2113708216, 2642135270, 4227416432, 5284270540, 10568541080, 21137082160]

約数ペア:

[(1, 21137082160), (2, 10568541080), (4, 5284270540), (5, 4227416432), (8, 2642135270), (10, 2113708216), (16, 1321067635), (20, 1056854108), (31, 681841360), (40, 528427054), (62, 340920680), (80, 264213527), (124, 170460340), (155, 136368272), (248, 85230170), (310, 68184136), (496, 42615085), (620, 34092068), (1240, 17046034), (2480, 8523017)]