21167436440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31128583}}^1$

素因数の和:31128611

約数の個数: 32

約数和(自身を含む): 50428306080

約数和(自身を除く): 29260869640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 31128583, 62257166, 124514332, 155642915, 249028664, 311285830, 529185911, 622571660, 1058371822, 1245143320, 2116743644, 2645929555, 4233487288, 5291859110, 10583718220, 21167436440]

約数ペア:

[(1, 21167436440), (2, 10583718220), (4, 5291859110), (5, 4233487288), (8, 2645929555), (10, 2116743644), (17, 1245143320), (20, 1058371822), (34, 622571660), (40, 529185911), (68, 311285830), (85, 249028664), (136, 155642915), (170, 124514332), (340, 62257166), (680, 31128583)]