20161217979

素因数分解:

$3^3\times 7^1\times {\mathrm{106673111}}^1$

素因数の和:106673127

約数の個数: 16

約数和(自身を含む): 34135395840

約数和(自身を除く): 13974177861

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 106673111, 320019333, 746711777, 960057999, 2240135331, 2880173997, 6720405993, 20161217979]

約数ペア:

[(1, 20161217979), (3, 6720405993), (7, 2880173997), (9, 2240135331), (21, 960057999), (27, 746711777), (63, 320019333), (189, 106673111)]