19915976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6367}}^1$

素因数の和:6413

約数の個数: 32

約数和(自身を含む): 41264640

約数和(自身を除く): 21348664

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128, 6367, 12734, 25468, 50936, 108239, 146441, 216478, 292882, 432956, 585764, 865912, 1171528, 2489497, 4978994, 9957988, 19915976]

約数ペア:

[(1, 19915976), (2, 9957988), (4, 4978994), (8, 2489497), (17, 1171528), (23, 865912), (34, 585764), (46, 432956), (68, 292882), (92, 216478), (136, 146441), (184, 108239), (391, 50936), (782, 25468), (1564, 12734), (3128, 6367)]