42909489

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 73592064

約数和(自身を除く): 30682575

約数列:

[1, 3, 7, 9, 21, 53, 63, 71, 159, 181, 213, 371, 477, 497, 543, 639, 1113, 1267, 1491, 1629, 3339, 3763, 3801, 4473, 9593, 11289, 11403, 12851, 26341, 28779, 33867, 38553, 67151, 79023, 86337, 89957, 115659, 201453, 237069, 269871, 604359, 681103, 809613, 2043309, 4767721, 6129927, 14303163, 42909489]

約数ペア:

[(1, 42909489), (3, 14303163), (7, 6129927), (9, 4767721), (21, 2043309), (53, 809613), (63, 681103), (71, 604359), (159, 269871), (181, 237069), (213, 201453), (371, 115659), (477, 89957), (497, 86337), (543, 79023), (639, 67151), (1113, 38553), (1267, 33867), (1491, 28779), (1629, 26341), (3339, 12851), (3763, 11403), (3801, 11289), (4473, 9593)]