19915684

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 35562240

約数和(自身を除く): 15646556

約数列:

[1, 2, 4, 83, 166, 223, 269, 332, 446, 538, 892, 1076, 18509, 22327, 37018, 44654, 59987, 74036, 89308, 119974, 239948, 4978921, 9957842, 19915684]

約数ペア:

[(1, 19915684), (2, 9957842), (4, 4978921), (83, 239948), (166, 119974), (223, 89308), (269, 74036), (332, 59987), (446, 44654), (538, 37018), (892, 22327), (1076, 18509)]