21377524

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3761}}^1$

素因数の和:3808

約数の個数: 36

約数和(自身を含む): 45031140

約数和(自身を除く): 23653616

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3761, 5684, 7522, 15044, 26327, 52654, 105308, 109069, 184289, 218138, 368578, 436276, 737156, 763483, 1526966, 3053932, 5344381, 10688762, 21377524]

約数ペア:

[(1, 21377524), (2, 10688762), (4, 5344381), (7, 3053932), (14, 1526966), (28, 763483), (29, 737156), (49, 436276), (58, 368578), (98, 218138), (116, 184289), (196, 109069), (203, 105308), (406, 52654), (812, 26327), (1421, 15044), (2842, 7522), (3761, 5684)]