15720159

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 10407201

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 267, 273, 623, 647, 1157, 1869, 1941, 3471, 4529, 8099, 8411, 13587, 24297, 25233, 57583, 58877, 172749, 176631, 403081, 748579, 1209243, 2245737, 5240053, 15720159]

約数ペア:

[(1, 15720159), (3, 5240053), (7, 2245737), (13, 1209243), (21, 748579), (39, 403081), (89, 176631), (91, 172749), (267, 58877), (273, 57583), (623, 25233), (647, 24297), (1157, 13587), (1869, 8411), (1941, 8099), (3471, 4529)]