21632163

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 33985536

約数和(自身を除く): 12353373

約数列:

[1, 3, 7, 21, 73, 103, 137, 219, 309, 411, 511, 721, 959, 1533, 2163, 2877, 7519, 10001, 14111, 22557, 30003, 42333, 52633, 70007, 98777, 157899, 210021, 296331, 1030103, 3090309, 7210721, 21632163]

約数ペア:

[(1, 21632163), (3, 7210721), (7, 3090309), (21, 1030103), (73, 296331), (103, 210021), (137, 157899), (219, 98777), (309, 70007), (411, 52633), (511, 42333), (721, 30003), (959, 22557), (1533, 14111), (2163, 10001), (2877, 7519)]