20980856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11867}}^1$

素因数の和:11903

約数の個数: 32

約数和(自身を含む): 44861040

約数和(自身を除く): 23880184

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11867, 23734, 47468, 94936, 154271, 201739, 308542, 403478, 617084, 806956, 1234168, 1613912, 2622607, 5245214, 10490428, 20980856]

約数ペア:

[(1, 20980856), (2, 10490428), (4, 5245214), (8, 2622607), (13, 1613912), (17, 1234168), (26, 806956), (34, 617084), (52, 403478), (68, 308542), (104, 201739), (136, 154271), (221, 94936), (442, 47468), (884, 23734), (1768, 11867)]