18915182209

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{127877}}^1$

素因数の和:128025

約数の個数: 32

約数和(自身を含む): 25190942976

約数和(自身を除く): 6275760767

約数列:

[1, 7, 11, 17, 77, 113, 119, 187, 791, 1243, 1309, 1921, 8701, 13447, 21131, 127877, 147917, 895139, 1406647, 2173909, 9846529, 14450101, 15217363, 23912999, 101150707, 158951111, 167390993, 245651717, 1112657777, 1719562019, 2702168887, 18915182209]

約数ペア:

[(1, 18915182209), (7, 2702168887), (11, 1719562019), (17, 1112657777), (77, 245651717), (113, 167390993), (119, 158951111), (187, 101150707), (791, 23912999), (1243, 15217363), (1309, 14450101), (1921, 9846529), (8701, 2173909), (13447, 1406647), (21131, 895139), (127877, 147917)]