18441787

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 36

約数和(自身を含む): 24784056

約数和(自身を除く): 6342269

約数列:

[1, 7, 13, 17, 49, 91, 119, 131, 169, 221, 637, 833, 917, 1183, 1547, 1703, 2227, 2873, 6419, 8281, 10829, 11921, 15589, 20111, 22139, 28951, 83447, 109123, 140777, 154973, 202657, 376363, 1084811, 1418599, 2634541, 18441787]

約数ペア:

[(1, 18441787), (7, 2634541), (13, 1418599), (17, 1084811), (49, 376363), (91, 202657), (119, 154973), (131, 140777), (169, 109123), (221, 83447), (637, 28951), (833, 22139), (917, 20111), (1183, 15589), (1547, 11921), (1703, 10829), (2227, 8281), (2873, 6419)]