21125642

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{4027}}^1$

素因数の和:4133

約数の個数: 16

約数和(自身を含む): 32965152

約数和(自身を除く): 11839510

約数列:

[1, 2, 43, 61, 86, 122, 2623, 4027, 5246, 8054, 173161, 245647, 346322, 491294, 10562821, 21125642]

約数ペア:

[(1, 21125642), (2, 10562821), (43, 491294), (61, 346322), (86, 245647), (122, 173161), (2623, 8054), (4027, 5246)]