1231554987

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{26921}}^1$

素因数の和:26980

約数の個数: 48

約数和(自身を含む): 2116715328

約数和(自身を除く): 885160341

約数列:

[1, 3, 9, 13, 17, 23, 39, 51, 69, 117, 153, 207, 221, 299, 391, 663, 897, 1173, 1989, 2691, 3519, 5083, 15249, 26921, 45747, 80763, 242289, 349973, 457657, 619183, 1049919, 1372971, 1857549, 3149757, 4118913, 5572647, 5949541, 8049379, 10526111, 17848623, 24148137, 31578333, 53545869, 72444411, 94734999, 136839443, 410518329, 1231554987]

約数ペア:

[(1, 1231554987), (3, 410518329), (9, 136839443), (13, 94734999), (17, 72444411), (23, 53545869), (39, 31578333), (51, 24148137), (69, 17848623), (117, 10526111), (153, 8049379), (207, 5949541), (221, 5572647), (299, 4118913), (391, 3149757), (663, 1857549), (897, 1372971), (1173, 1049919), (1989, 619183), (2691, 457657), (3519, 349973), (5083, 242289), (15249, 80763), (26921, 45747)]