81630471

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{269}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 121927680

約数和(自身を除く): 40297209

約数列:

[1, 3, 13, 31, 39, 93, 251, 269, 403, 753, 807, 1209, 3263, 3497, 7781, 8339, 9789, 10491, 23343, 25017, 67519, 101153, 108407, 202557, 303459, 325221, 877747, 2093089, 2633241, 6279267, 27210157, 81630471]

約数ペア:

[(1, 81630471), (3, 27210157), (13, 6279267), (31, 2633241), (39, 2093089), (93, 877747), (251, 325221), (269, 303459), (403, 202557), (753, 108407), (807, 101153), (1209, 67519), (3263, 25017), (3497, 23343), (7781, 10491), (8339, 9789)]