21125364

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{709}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 53437440

約数和(自身を除く): 32312076

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 191, 382, 573, 709, 764, 1146, 1418, 2127, 2292, 2483, 2836, 4254, 4966, 7449, 8508, 9217, 9932, 14898, 18434, 27651, 29796, 36868, 55302, 110604, 135419, 270838, 406257, 541676, 812514, 1625028, 1760447, 3520894, 5281341, 7041788, 10562682, 21125364]

約数ペア:

[(1, 21125364), (2, 10562682), (3, 7041788), (4, 5281341), (6, 3520894), (12, 1760447), (13, 1625028), (26, 812514), (39, 541676), (52, 406257), (78, 270838), (156, 135419), (191, 110604), (382, 55302), (573, 36868), (709, 29796), (764, 27651), (1146, 18434), (1418, 14898), (2127, 9932), (2292, 9217), (2483, 8508), (2836, 7449), (4254, 4966)]