217811779

素因数分解:

${\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{751}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 230382720

約数和(自身を除く): 12570941

約数列:

[1, 29, 73, 137, 751, 2117, 3973, 10001, 21779, 54823, 102887, 290029, 1589867, 2983723, 7510751, 217811779]

約数ペア:

[(1, 217811779), (29, 7510751), (73, 2983723), (137, 1589867), (751, 290029), (2117, 102887), (3973, 54823), (10001, 21779)]