128387217

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{941}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 200759040

約数和(自身を除く): 72371823

約数列:

[1, 3, 7, 21, 73, 89, 219, 267, 511, 623, 941, 1533, 1869, 2823, 6497, 6587, 19491, 19761, 45479, 68693, 83749, 136437, 206079, 251247, 480851, 586243, 1442553, 1758729, 6113677, 18341031, 42795739, 128387217]

約数ペア:

[(1, 128387217), (3, 42795739), (7, 18341031), (21, 6113677), (73, 1758729), (89, 1442553), (219, 586243), (267, 480851), (511, 251247), (623, 206079), (941, 136437), (1533, 83749), (1869, 68693), (2823, 45479), (6497, 19761), (6587, 19491)]