19867653

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{107}}^1$

素因数の和:175

約数の個数: 48

約数和(自身を含む): 33445440

約数和(自身を除く): 13577787

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 107, 117, 207, 299, 321, 351, 529, 621, 897, 963, 1391, 1587, 2461, 2691, 2889, 4173, 4761, 6877, 7383, 8073, 12519, 14283, 20631, 22149, 31993, 37557, 56603, 61893, 66447, 95979, 169809, 185679, 287937, 509427, 735839, 863811, 1528281, 2207517, 6622551, 19867653]

約数ペア:

[(1, 19867653), (3, 6622551), (9, 2207517), (13, 1528281), (23, 863811), (27, 735839), (39, 509427), (69, 287937), (107, 185679), (117, 169809), (207, 95979), (299, 66447), (321, 61893), (351, 56603), (529, 37557), (621, 31993), (897, 22149), (963, 20631), (1391, 14283), (1587, 12519), (2461, 8073), (2691, 7383), (2889, 6877), (4173, 4761)]