81231381

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{467}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 147184128

約数和(自身を除く): 65952747

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 251, 467, 693, 753, 1401, 1757, 2259, 2761, 3269, 4203, 5137, 5271, 8283, 9807, 15411, 15813, 19327, 24849, 29421, 35959, 46233, 57981, 107877, 117217, 173943, 323631, 351651, 820519, 1054953, 1289387, 2461557, 3868161, 7384671, 9025709, 11604483, 27077127, 81231381]

約数ペア:

[(1, 81231381), (3, 27077127), (7, 11604483), (9, 9025709), (11, 7384671), (21, 3868161), (33, 2461557), (63, 1289387), (77, 1054953), (99, 820519), (231, 351651), (251, 323631), (467, 173943), (693, 117217), (753, 107877), (1401, 57981), (1757, 46233), (2259, 35959), (2761, 29421), (3269, 24849), (4203, 19327), (5137, 15813), (5271, 15411), (8283, 9807)]