19701399

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{607}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 27238400

約数和(自身を除く): 7537001

約数列:

[1, 3, 31, 93, 349, 607, 1047, 1821, 10819, 18817, 32457, 56451, 211843, 635529, 6567133, 19701399]

約数ペア:

[(1, 19701399), (3, 6567133), (31, 635529), (93, 211843), (349, 56451), (607, 32457), (1047, 18817), (1821, 10819)]