2157561

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1489}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 3719040

約数和(自身を除く): 1561479

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 1489, 4467, 10423, 13401, 31269, 34247, 93807, 102741, 239729, 308223, 719187, 2157561]

約数ペア:

[(1, 2157561), (3, 719187), (7, 308223), (9, 239729), (21, 102741), (23, 93807), (63, 34247), (69, 31269), (161, 13401), (207, 10423), (483, 4467), (1449, 1489)]