21807274

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1\times {\mathrm{491}}^1$

素因数の和:965

約数の個数: 16

約数和(自身を含む): 33475680

約数和(自身を除く): 11668406

約数列:

[1, 2, 53, 106, 419, 491, 838, 982, 22207, 26023, 44414, 52046, 205729, 411458, 10903637, 21807274]

約数ペア:

[(1, 21807274), (2, 10903637), (53, 411458), (106, 205729), (419, 52046), (491, 44414), (838, 26023), (982, 22207)]