215117679

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1\times {\mathrm{947}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 340369920

約数和(自身を除く): 125252241

約数列:

[1, 3, 7, 21, 29, 87, 203, 373, 609, 947, 1119, 2611, 2841, 6629, 7833, 10817, 19887, 27463, 32451, 75719, 82389, 192241, 227157, 353231, 576723, 1059693, 2472617, 7417851, 10243699, 30731097, 71705893, 215117679]

約数ペア:

[(1, 215117679), (3, 71705893), (7, 30731097), (21, 10243699), (29, 7417851), (87, 2472617), (203, 1059693), (373, 576723), (609, 353231), (947, 227157), (1119, 192241), (2611, 82389), (2841, 75719), (6629, 32451), (7833, 27463), (10817, 19887)]