19701232

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72431}}^1$

素因数の和:72456

約数の個数: 20

約数和(自身を含む): 40417056

約数和(自身を除く): 20715824

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72431, 144862, 289724, 579448, 1158896, 1231327, 2462654, 4925308, 9850616, 19701232]

約数ペア:

[(1, 19701232), (2, 9850616), (4, 4925308), (8, 2462654), (16, 1231327), (17, 1158896), (34, 579448), (68, 289724), (136, 144862), (272, 72431)]