19257903

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1279}}^1$

素因数の和:1531

約数の個数: 24

約数和(自身を含む): 31948800

約数和(自身を除く): 12690897

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1279, 1673, 2151, 3837, 5019, 8953, 11511, 15057, 26859, 80577, 305681, 917043, 2139767, 2751129, 6419301, 19257903]

約数ペア:

[(1, 19257903), (3, 6419301), (7, 2751129), (9, 2139767), (21, 917043), (63, 305681), (239, 80577), (717, 26859), (1279, 15057), (1673, 11511), (2151, 8953), (3837, 5019)]