20369559

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{233}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 32707584

約数和(自身を除く): 12338025

約数列:

[1, 3, 7, 21, 23, 69, 161, 181, 233, 483, 543, 699, 1267, 1631, 3801, 4163, 4893, 5359, 12489, 16077, 29141, 37513, 42173, 87423, 112539, 126519, 295211, 885633, 969979, 2909937, 6789853, 20369559]

約数ペア:

[(1, 20369559), (3, 6789853), (7, 2909937), (21, 969979), (23, 885633), (69, 295211), (161, 126519), (181, 112539), (233, 87423), (483, 42173), (543, 37513), (699, 29141), (1267, 16077), (1631, 12489), (3801, 5359), (4163, 4893)]