31751109

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:93

約数の個数: 72

約数和(自身を含む): 56361760

約数和(自身を除く): 24610651

約数列:

[1, 3, 9, 13, 19, 23, 27, 39, 57, 69, 81, 117, 171, 207, 243, 247, 299, 351, 437, 513, 529, 621, 741, 897, 1053, 1311, 1539, 1587, 1863, 2223, 2691, 3159, 3933, 4617, 4761, 5589, 5681, 6669, 6877, 8073, 10051, 11799, 14283, 17043, 20007, 20631, 24219, 30153, 35397, 42849, 51129, 60021, 61893, 72657, 90459, 106191, 128547, 130663, 153387, 185679, 271377, 391989, 460161, 557037, 814131, 1175967, 1380483, 1671111, 2442393, 3527901, 10583703, 31751109]

約数ペア:

[(1, 31751109), (3, 10583703), (9, 3527901), (13, 2442393), (19, 1671111), (23, 1380483), (27, 1175967), (39, 814131), (57, 557037), (69, 460161), (81, 391989), (117, 271377), (171, 185679), (207, 153387), (243, 130663), (247, 128547), (299, 106191), (351, 90459), (437, 72657), (513, 61893), (529, 60021), (621, 51129), (741, 42849), (897, 35397), (1053, 30153), (1311, 24219), (1539, 20631), (1587, 20007), (1863, 17043), (2223, 14283), (2691, 11799), (3159, 10051), (3933, 8073), (4617, 6877), (4761, 6669), (5589, 5681)]