388697043

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1\times {\mathrm{617}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 600399360

約数和(自身を除く): 211702317

約数列:

[1, 3, 7, 21, 131, 229, 393, 617, 687, 917, 1603, 1851, 2751, 4319, 4809, 12957, 29999, 80827, 89997, 141293, 209993, 242481, 423879, 565789, 629979, 989051, 1697367, 2967153, 18509383, 55528149, 129565681, 388697043]

約数ペア:

[(1, 388697043), (3, 129565681), (7, 55528149), (21, 18509383), (131, 2967153), (229, 1697367), (393, 989051), (617, 629979), (687, 565789), (917, 423879), (1603, 242481), (1851, 209993), (2751, 141293), (4319, 89997), (4809, 80827), (12957, 29999)]