217419376

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{172009}}^1$

素因数の和:172096

約数の個数: 20

約数和(自身を含む): 426584800

約数和(自身を除く): 209165424

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 172009, 344018, 688036, 1376072, 2752144, 13588711, 27177422, 54354844, 108709688, 217419376]

約数ペア:

[(1, 217419376), (2, 108709688), (4, 54354844), (8, 27177422), (16, 13588711), (79, 2752144), (158, 1376072), (316, 688036), (632, 344018), (1264, 172009)]