21377529

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 31749120

約数和(自身を除く): 10371591

約数列:

[1, 3, 9, 59, 127, 177, 317, 381, 531, 951, 1143, 2853, 7493, 18703, 22479, 40259, 56109, 67437, 120777, 168327, 362331, 2375281, 7125843, 21377529]

約数ペア:

[(1, 21377529), (3, 7125843), (9, 2375281), (59, 362331), (127, 168327), (177, 120777), (317, 67437), (381, 56109), (531, 40259), (951, 22479), (1143, 18703), (2853, 7493)]