21605552

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{17093}}^1$

素因数の和:17180

約数の個数: 20

約数和(自身を含む): 42393120

約数和(自身を除く): 20787568

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 17093, 34186, 68372, 136744, 273488, 1350347, 2700694, 5401388, 10802776, 21605552]

約数ペア:

[(1, 21605552), (2, 10802776), (4, 5401388), (8, 2700694), (16, 1350347), (79, 273488), (158, 136744), (316, 68372), (632, 34186), (1264, 17093)]