21321400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6271}}^1$

素因数の和:6304

約数の個数: 48

約数和(自身を含む): 52496640

約数和(自身を除く): 31175240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 6271, 12542, 25084, 31355, 50168, 62710, 106607, 125420, 156775, 213214, 250840, 313550, 426428, 533035, 627100, 852856, 1066070, 1254200, 2132140, 2665175, 4264280, 5330350, 10660700, 21321400]

約数ペア:

[(1, 21321400), (2, 10660700), (4, 5330350), (5, 4264280), (8, 2665175), (10, 2132140), (17, 1254200), (20, 1066070), (25, 852856), (34, 627100), (40, 533035), (50, 426428), (68, 313550), (85, 250840), (100, 213214), (136, 156775), (170, 125420), (200, 106607), (340, 62710), (425, 50168), (680, 31355), (850, 25084), (1700, 12542), (3400, 6271)]