19157859

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4283}}^1$

素因数の和:4367

約数の個数: 24

約数和(自身を含む): 32078592

約数和(自身を除く): 12920733

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4283, 4473, 12849, 29981, 38547, 89943, 269829, 304093, 912279, 2128651, 2736837, 6385953, 19157859]

約数ペア:

[(1, 19157859), (3, 6385953), (7, 2736837), (9, 2128651), (21, 912279), (63, 304093), (71, 269829), (213, 89943), (497, 38547), (639, 29981), (1491, 12849), (4283, 4473)]