19877702

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 34080480

約数和(自身を除く): 14202778

約数列:

[1, 2, 13, 26, 29, 41, 58, 82, 377, 533, 643, 754, 1066, 1189, 1286, 2378, 8359, 15457, 16718, 18647, 26363, 30914, 37294, 52726, 242411, 342719, 484822, 685438, 764527, 1529054, 9938851, 19877702]

約数ペア:

[(1, 19877702), (2, 9938851), (13, 1529054), (26, 764527), (29, 685438), (41, 484822), (58, 342719), (82, 242411), (377, 52726), (533, 37294), (643, 30914), (754, 26363), (1066, 18647), (1189, 16718), (1286, 15457), (2378, 8359)]