15956421

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{587}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 24893568

約数和(自身を除く): 8937147

約数列:

[1, 3, 13, 17, 39, 41, 51, 123, 221, 533, 587, 663, 697, 1599, 1761, 2091, 7631, 9061, 9979, 22893, 24067, 27183, 29937, 72201, 129727, 312871, 389181, 409139, 938613, 1227417, 5318807, 15956421]

約数ペア:

[(1, 15956421), (3, 5318807), (13, 1227417), (17, 938613), (39, 409139), (41, 389181), (51, 312871), (123, 129727), (221, 72201), (533, 29937), (587, 27183), (663, 24067), (697, 22893), (1599, 9979), (1761, 9061), (2091, 7631)]