19178901

素因数分解:

$3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1039}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 31799040

約数和(自身を除く): 12620139

約数列:

[1, 3, 7, 9, 21, 63, 293, 879, 1039, 2051, 2637, 3117, 6153, 7273, 9351, 18459, 21819, 65457, 304427, 913281, 2130989, 2739843, 6392967, 19178901]

約数ペア:

[(1, 19178901), (3, 6392967), (7, 2739843), (9, 2130989), (21, 913281), (63, 304427), (293, 65457), (879, 21819), (1039, 18459), (2051, 9351), (2637, 7273), (3117, 6153)]