21025768

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{283}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 40793760

約数和(自身を除く): 19767992

約数列:

[1, 2, 4, 8, 37, 74, 148, 251, 283, 296, 502, 566, 1004, 1132, 2008, 2264, 9287, 10471, 18574, 20942, 37148, 41884, 71033, 74296, 83768, 142066, 284132, 568264, 2628221, 5256442, 10512884, 21025768]

約数ペア:

[(1, 21025768), (2, 10512884), (4, 5256442), (8, 2628221), (37, 568264), (74, 284132), (148, 142066), (251, 83768), (283, 74296), (296, 71033), (502, 41884), (566, 37148), (1004, 20942), (1132, 18574), (2008, 10471), (2264, 9287)]