20996261

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 26248320

約数和(自身を除く): 5252059

約数列:

[1, 11, 13, 29, 61, 83, 143, 319, 377, 671, 793, 913, 1079, 1769, 2407, 4147, 5063, 8723, 11869, 19459, 22997, 26477, 31291, 55693, 65819, 146827, 252967, 344201, 724009, 1615097, 1908751, 20996261]

約数ペア:

[(1, 20996261), (11, 1908751), (13, 1615097), (29, 724009), (61, 344201), (83, 252967), (143, 146827), (319, 65819), (377, 55693), (671, 31291), (793, 26477), (913, 22997), (1079, 19459), (1769, 11869), (2407, 8723), (4147, 5063)]