21845318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 37559808

約数和(自身を除く): 15714490

約数列:

[1, 2, 11, 22, 37, 47, 74, 94, 407, 517, 571, 814, 1034, 1142, 1739, 3478, 6281, 12562, 19129, 21127, 26837, 38258, 42254, 53674, 232397, 295207, 464794, 590414, 992969, 1985938, 10922659, 21845318]

約数ペア:

[(1, 21845318), (2, 10922659), (11, 1985938), (22, 992969), (37, 590414), (47, 464794), (74, 295207), (94, 232397), (407, 53674), (517, 42254), (571, 38258), (814, 26837), (1034, 21127), (1142, 19129), (1739, 12562), (3478, 6281)]