21387012

素因数分解:

$2^2\times 3^1\times {\mathrm{1049}}^1\times {\mathrm{1699}}^1$

素因数の和:2755

約数の個数: 24

約数和(自身を含む): 49980000

約数和(自身を除く): 28592988

約数列:

[1, 2, 3, 4, 6, 12, 1049, 1699, 2098, 3147, 3398, 4196, 5097, 6294, 6796, 10194, 12588, 20388, 1782251, 3564502, 5346753, 7129004, 10693506, 21387012]

約数ペア:

[(1, 21387012), (2, 10693506), (3, 7129004), (4, 5346753), (6, 3564502), (12, 1782251), (1049, 20388), (1699, 12588), (2098, 10194), (3147, 6796), (3398, 6294), (4196, 5097)]