21299170

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{541}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 39960576

約数和(自身を除く): 18661406

約数列:

[1, 2, 5, 10, 31, 62, 127, 155, 254, 310, 541, 635, 1082, 1270, 2705, 3937, 5410, 7874, 16771, 19685, 33542, 39370, 68707, 83855, 137414, 167710, 343535, 687070, 2129917, 4259834, 10649585, 21299170]

約数ペア:

[(1, 21299170), (2, 10649585), (5, 4259834), (10, 2129917), (31, 687070), (62, 343535), (127, 167710), (155, 137414), (254, 83855), (310, 68707), (541, 39370), (635, 33542), (1082, 19685), (1270, 16771), (2705, 7874), (3937, 5410)]