21119786

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1\times {\mathrm{523}}^1$

素因数の和:917

約数の個数: 16

約数和(自身を含む): 32358048

約数和(自身を除く): 11238262

約数列:

[1, 2, 61, 122, 331, 523, 662, 1046, 20191, 31903, 40382, 63806, 173113, 346226, 10559893, 21119786]

約数ペア:

[(1, 21119786), (2, 10559893), (61, 346226), (122, 173113), (331, 63806), (523, 40382), (662, 31903), (1046, 20191)]