28511091

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3803}}^1$

素因数の和:3840

約数の個数: 36

約数和(自身を含む): 50737752

約数和(自身を除く): 22226661

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 3803, 7497, 11409, 26621, 34227, 64651, 79863, 186347, 193953, 239589, 452557, 559041, 581859, 1357671, 1677123, 3167899, 4073013, 9503697, 28511091]

約数ペア:

[(1, 28511091), (3, 9503697), (7, 4073013), (9, 3167899), (17, 1677123), (21, 1357671), (49, 581859), (51, 559041), (63, 452557), (119, 239589), (147, 193953), (153, 186347), (357, 79863), (441, 64651), (833, 34227), (1071, 26621), (2499, 11409), (3803, 7497)]