19204016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5431}}^1$

素因数の和:5469

約数の個数: 40

約数和(自身を含む): 42434784

約数和(自身を除く): 23230768

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5431, 10862, 21724, 43448, 70603, 86896, 92327, 141206, 184654, 282412, 369308, 564824, 738616, 1129648, 1200251, 1477232, 2400502, 4801004, 9602008, 19204016]

約数ペア:

[(1, 19204016), (2, 9602008), (4, 4801004), (8, 2400502), (13, 1477232), (16, 1200251), (17, 1129648), (26, 738616), (34, 564824), (52, 369308), (68, 282412), (104, 184654), (136, 141206), (208, 92327), (221, 86896), (272, 70603), (442, 43448), (884, 21724), (1768, 10862), (3536, 5431)]