21276258

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:682

約数の個数: 32

約数和(自身を含む): 43994880

約数和(自身を除く): 22718622

約数列:

[1, 2, 3, 6, 37, 74, 111, 222, 239, 401, 478, 717, 802, 1203, 1434, 2406, 8843, 14837, 17686, 26529, 29674, 44511, 53058, 89022, 95839, 191678, 287517, 575034, 3546043, 7092086, 10638129, 21276258]

約数ペア:

[(1, 21276258), (2, 10638129), (3, 7092086), (6, 3546043), (37, 575034), (74, 287517), (111, 191678), (222, 95839), (239, 89022), (401, 53058), (478, 44511), (717, 29674), (802, 26529), (1203, 17686), (1434, 14837), (2406, 8843)]