21998940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2887}}^1$

素因数の和:3026

約数の個数: 48

約数和(自身を含む): 62103552

約数和(自身を除く): 40104612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2887, 3810, 5774, 7620, 8661, 11548, 14435, 17322, 28870, 34644, 43305, 57740, 86610, 173220, 366649, 733298, 1099947, 1466596, 1833245, 2199894, 3666490, 4399788, 5499735, 7332980, 10999470, 21998940]

約数ペア:

[(1, 21998940), (2, 10999470), (3, 7332980), (4, 5499735), (5, 4399788), (6, 3666490), (10, 2199894), (12, 1833245), (15, 1466596), (20, 1099947), (30, 733298), (60, 366649), (127, 173220), (254, 86610), (381, 57740), (508, 43305), (635, 34644), (762, 28870), (1270, 17322), (1524, 14435), (1905, 11548), (2540, 8661), (2887, 7620), (3810, 5774)]