21766040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{10267}}^1$

素因数の和:10331

約数の個数: 32

約数和(自身を含む): 49902480

約数和(自身を除く): 28136440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 10267, 20534, 41068, 51335, 82136, 102670, 205340, 410680, 544151, 1088302, 2176604, 2720755, 4353208, 5441510, 10883020, 21766040]

約数ペア:

[(1, 21766040), (2, 10883020), (4, 5441510), (5, 4353208), (8, 2720755), (10, 2176604), (20, 1088302), (40, 544151), (53, 410680), (106, 205340), (212, 102670), (265, 82136), (424, 51335), (530, 41068), (1060, 20534), (2120, 10267)]