21663854

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4423}}^1$

素因数の和:4535

約数の個数: 16

約数和(自身を含む): 33976320

約数和(自身を除く): 12312466

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4423, 4898, 8846, 137113, 274226, 349417, 698834, 10831927, 21663854]

約数ペア:

[(1, 21663854), (2, 10831927), (31, 698834), (62, 349417), (79, 274226), (158, 137113), (2449, 8846), (4423, 4898)]