19864377

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 36

約数和(自身を含む): 31985772

約数和(自身を除く): 12121395

約数列:

[1, 3, 9, 13, 39, 41, 101, 117, 123, 303, 369, 533, 909, 1313, 1599, 1681, 3939, 4141, 4797, 5043, 11817, 12423, 15129, 21853, 37269, 53833, 65559, 161499, 169781, 196677, 484497, 509343, 1528029, 2207153, 6621459, 19864377]

約数ペア:

[(1, 19864377), (3, 6621459), (9, 2207153), (13, 1528029), (39, 509343), (41, 484497), (101, 196677), (117, 169781), (123, 161499), (303, 65559), (369, 53833), (533, 37269), (909, 21853), (1313, 15129), (1599, 12423), (1681, 11817), (3939, 5043), (4141, 4797)]