21246910

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{571}}^1$

素因数の和:700

約数の個数: 24

約数和(自身を含む): 38949768

約数和(自身を除く): 17702858

約数列:

[1, 2, 5, 10, 61, 122, 305, 571, 610, 1142, 2855, 3721, 5710, 7442, 18605, 34831, 37210, 69662, 174155, 348310, 2124691, 4249382, 10623455, 21246910]

約数ペア:

[(1, 21246910), (2, 10623455), (5, 4249382), (10, 2124691), (61, 348310), (122, 174155), (305, 69662), (571, 37210), (610, 34831), (1142, 18605), (2855, 7442), (3721, 5710)]