18977973

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4283}}^1$

素因数の和:4504

約数の個数: 16

約数和(自身を含む): 29062656

約数和(自身を除く): 10084683

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4283, 4431, 12849, 29981, 89943, 903713, 2711139, 6325991, 18977973]

約数ペア:

[(1, 18977973), (3, 6325991), (7, 2711139), (21, 903713), (211, 89943), (633, 29981), (1477, 12849), (4283, 4431)]