20285174

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{491}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 37691136

約数和(自身を除く): 17405962

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 227, 454, 491, 982, 1589, 2951, 3178, 3437, 5902, 6383, 6874, 12766, 20657, 41314, 44681, 89362, 111457, 222914, 780199, 1448941, 1560398, 2897882, 10142587, 20285174]

約数ペア:

[(1, 20285174), (2, 10142587), (7, 2897882), (13, 1560398), (14, 1448941), (26, 780199), (91, 222914), (182, 111457), (227, 89362), (454, 44681), (491, 41314), (982, 20657), (1589, 12766), (2951, 6874), (3178, 6383), (3437, 5902)]