218014251

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{4013}}^1$

素因数の和:4235

約数の個数: 32

約数和(自身を含む): 359654400

約数和(自身を除く): 141640149

約数列:

[1, 3, 7, 13, 21, 39, 91, 199, 273, 597, 1393, 2587, 4013, 4179, 7761, 12039, 18109, 28091, 52169, 54327, 84273, 156507, 365183, 798587, 1095549, 2395761, 5590109, 10381631, 16770327, 31144893, 72671417, 218014251]

約数ペア:

[(1, 218014251), (3, 72671417), (7, 31144893), (13, 16770327), (21, 10381631), (39, 5590109), (91, 2395761), (199, 1095549), (273, 798587), (597, 365183), (1393, 156507), (2587, 84273), (4013, 54327), (4179, 52169), (7761, 28091), (12039, 18109)]