19964529

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2473}}^1$

素因数の和:2518

約数の個数: 32

約数和(自身を含む): 33250560

約数和(自身を除く): 13286031

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2473, 2691, 7419, 8073, 22257, 32149, 56879, 66771, 96447, 170637, 289341, 511911, 739427, 868023, 1535733, 2218281, 6654843, 19964529]

約数ペア:

[(1, 19964529), (3, 6654843), (9, 2218281), (13, 1535733), (23, 868023), (27, 739427), (39, 511911), (69, 289341), (117, 170637), (207, 96447), (299, 66771), (351, 56879), (621, 32149), (897, 22257), (2473, 8073), (2691, 7419)]