217142013

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1553}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 334172160

約数和(自身を除く): 117030147

約数列:

[1, 3, 11, 19, 33, 57, 209, 223, 627, 669, 1553, 2453, 4237, 4659, 7359, 12711, 17083, 29507, 46607, 51249, 88521, 139821, 324577, 346319, 973731, 1038957, 3809509, 6580061, 11428527, 19740183, 72380671, 217142013]

約数ペア:

[(1, 217142013), (3, 72380671), (11, 19740183), (19, 11428527), (33, 6580061), (57, 3809509), (209, 1038957), (223, 973731), (627, 346319), (669, 324577), (1553, 139821), (2453, 88521), (4237, 51249), (4659, 46607), (7359, 29507), (12711, 17083)]