21655732

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 45552640

約数和(自身を除く): 23896908

約数列:

[1, 2, 4, 7, 14, 28, 31, 61, 62, 122, 124, 217, 244, 409, 427, 434, 818, 854, 868, 1636, 1708, 1891, 2863, 3782, 5726, 7564, 11452, 12679, 13237, 24949, 25358, 26474, 49898, 50716, 52948, 88753, 99796, 174643, 177506, 349286, 355012, 698572, 773419, 1546838, 3093676, 5413933, 10827866, 21655732]

約数ペア:

[(1, 21655732), (2, 10827866), (4, 5413933), (7, 3093676), (14, 1546838), (28, 773419), (31, 698572), (61, 355012), (62, 349286), (122, 177506), (124, 174643), (217, 99796), (244, 88753), (409, 52948), (427, 50716), (434, 49898), (818, 26474), (854, 25358), (868, 24949), (1636, 13237), (1708, 12679), (1891, 11452), (2863, 7564), (3782, 5726)]