20379957

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 31570560

約数和(自身を除く): 11190603

約数列:

[1, 3, 13, 17, 39, 51, 59, 177, 221, 521, 663, 767, 1003, 1563, 2301, 3009, 6773, 8857, 13039, 20319, 26571, 30739, 39117, 92217, 115141, 345423, 399607, 522563, 1198821, 1567689, 6793319, 20379957]

約数ペア:

[(1, 20379957), (3, 6793319), (13, 1567689), (17, 1198821), (39, 522563), (51, 399607), (59, 345423), (177, 115141), (221, 92217), (521, 39117), (663, 30739), (767, 26571), (1003, 20319), (1563, 13039), (2301, 8857), (3009, 6773)]