90870021

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 153054720

約数和(自身を除く): 62184699

約数列:

[1, 3, 9, 11, 29, 31, 33, 87, 93, 99, 261, 279, 319, 341, 899, 957, 1021, 1023, 2697, 2871, 3063, 3069, 8091, 9189, 9889, 11231, 29609, 29667, 31651, 33693, 88827, 89001, 94953, 101079, 266481, 284859, 325699, 348161, 917879, 977097, 1044483, 2753637, 2931291, 3133449, 8260911, 10096669, 30290007, 90870021]

約数ペア:

[(1, 90870021), (3, 30290007), (9, 10096669), (11, 8260911), (29, 3133449), (31, 2931291), (33, 2753637), (87, 1044483), (93, 977097), (99, 917879), (261, 348161), (279, 325699), (319, 284859), (341, 266481), (899, 101079), (957, 94953), (1021, 89001), (1023, 88827), (2697, 33693), (2871, 31651), (3063, 29667), (3069, 29609), (8091, 11231), (9189, 9889)]