19959530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{857}}^1$

素因数の和:1018

約数の個数: 32

約数和(自身を含む): 38362896

約数和(自身を除く): 18403366

約数列:

[1, 2, 5, 10, 17, 34, 85, 137, 170, 274, 685, 857, 1370, 1714, 2329, 4285, 4658, 8570, 11645, 14569, 23290, 29138, 72845, 117409, 145690, 234818, 587045, 1174090, 1995953, 3991906, 9979765, 19959530]

約数ペア:

[(1, 19959530), (2, 9979765), (5, 3991906), (10, 1995953), (17, 1174090), (34, 587045), (85, 234818), (137, 145690), (170, 117409), (274, 72845), (685, 29138), (857, 23290), (1370, 14569), (1714, 11645), (2329, 8570), (4285, 4658)]