18816627361

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1\times {\mathrm{2011}}^1$

素因数の和:3385

約数の個数: 32

約数和(自身を含む): 23172445440

約数和(自身を除く): 4355818079

約数列:

[1, 7, 17, 61, 119, 427, 1037, 1289, 2011, 7259, 9023, 14077, 21913, 34187, 78629, 122671, 153391, 239309, 550403, 858697, 1336693, 2085407, 2592179, 9356851, 14597849, 18145253, 44067043, 158122919, 308469301, 1106860433, 2688089623, 18816627361]

約数ペア:

[(1, 18816627361), (7, 2688089623), (17, 1106860433), (61, 308469301), (119, 158122919), (427, 44067043), (1037, 18145253), (1289, 14597849), (2011, 9356851), (7259, 2592179), (9023, 2085407), (14077, 1336693), (21913, 858697), (34187, 550403), (78629, 239309), (122671, 153391)]