2001221.00000000

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{15919}}^1$

素因数の和:16013

約数の個数: 24

約数和(自身を含む): 106982400

約数和(自身を除く): 51647956

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 15919, 31838, 63676, 175109, 350218, 700436, 1257601, 2515202, 5030404, 13833611, 27667222, 55334444]

約数ペア:

[(1, 55334444), (2, 27667222), (4, 13833611), (11, 5030404), (22, 2515202), (44, 1257601), (79, 700436), (158, 350218), (316, 175109), (869, 63676), (1738, 31838), (3476, 15919)]