19978086

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{32327}}^1$

素因数の和:32435

約数の個数: 16

約数和(自身を含む): 40345344

約数和(自身を除く): 20367258

約数列:

[1, 2, 3, 6, 103, 206, 309, 618, 32327, 64654, 96981, 193962, 3329681, 6659362, 9989043, 19978086]

約数ペア:

[(1, 19978086), (2, 9989043), (3, 6659362), (6, 3329681), (103, 193962), (206, 96981), (309, 64654), (618, 32327)]