21806772

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139787}}^1$

素因数の和:139807

約数の個数: 24

約数和(自身を含む): 54796896

約数和(自身を除く): 32990124

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139787, 279574, 419361, 559148, 838722, 1677444, 1817231, 3634462, 5451693, 7268924, 10903386, 21806772]

約数ペア:

[(1, 21806772), (2, 10903386), (3, 7268924), (4, 5451693), (6, 3634462), (12, 1817231), (13, 1677444), (26, 838722), (39, 559148), (52, 419361), (78, 279574), (156, 139787)]