18859841

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 6880447

約数列:

[1, 7, 11, 13, 77, 83, 91, 143, 227, 581, 913, 1001, 1079, 1589, 2497, 2951, 6391, 7553, 11869, 17479, 18841, 20657, 32461, 83083, 131887, 207251, 227227, 244933, 1450757, 1714531, 2694263, 18859841]

約数ペア:

[(1, 18859841), (7, 2694263), (11, 1714531), (13, 1450757), (77, 244933), (83, 227227), (91, 207251), (143, 131887), (227, 83083), (581, 32461), (913, 20657), (1001, 18841), (1079, 17479), (1589, 11869), (2497, 7553), (2951, 6391)]