21908590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1319}}^1$

素因数の和:1488

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 21429650

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 151, 302, 755, 1319, 1510, 1661, 2638, 3322, 6595, 8305, 13190, 14509, 16610, 29018, 72545, 145090, 199169, 398338, 995845, 1991690, 2190859, 4381718, 10954295, 21908590]

約数ペア:

[(1, 21908590), (2, 10954295), (5, 4381718), (10, 2190859), (11, 1991690), (22, 995845), (55, 398338), (110, 199169), (151, 145090), (302, 72545), (755, 29018), (1319, 16610), (1510, 14509), (1661, 13190), (2638, 8305), (3322, 6595)]