21682045

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{283}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 32716800

約数和(自身を除く): 11034755

約数列:

[1, 5, 7, 11, 35, 55, 77, 199, 283, 385, 995, 1393, 1415, 1981, 2189, 3113, 6965, 9905, 10945, 15323, 15565, 21791, 56317, 76615, 108955, 281585, 394219, 619487, 1971095, 3097435, 4336409, 21682045]

約数ペア:

[(1, 21682045), (5, 4336409), (7, 3097435), (11, 1971095), (35, 619487), (55, 394219), (77, 281585), (199, 108955), (283, 76615), (385, 56317), (995, 21791), (1393, 15565), (1415, 15323), (1981, 10945), (2189, 9905), (3113, 6965)]