21141694960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8524877}}^1$

素因数の和:8524921

約数の個数: 40

約数和(自身を含む): 50740073856

約数和(自身を除く): 29598378896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8524877, 17049754, 34099508, 42624385, 68199016, 85248770, 136398032, 170497540, 264271187, 340995080, 528542374, 681990160, 1057084748, 1321355935, 2114169496, 2642711870, 4228338992, 5285423740, 10570847480, 21141694960]

約数ペア:

[(1, 21141694960), (2, 10570847480), (4, 5285423740), (5, 4228338992), (8, 2642711870), (10, 2114169496), (16, 1321355935), (20, 1057084748), (31, 681990160), (40, 528542374), (62, 340995080), (80, 264271187), (124, 170497540), (155, 136398032), (248, 85248770), (310, 68199016), (496, 42624385), (620, 34099508), (1240, 17049754), (2480, 8524877)]