18492004

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 33084800

約数和(自身を除く): 14592796

約数列:

[1, 2, 4, 79, 139, 158, 278, 316, 421, 556, 842, 1684, 10981, 21962, 33259, 43924, 58519, 66518, 117038, 133036, 234076, 4623001, 9246002, 18492004]

約数ペア:

[(1, 18492004), (2, 9246002), (4, 4623001), (79, 234076), (139, 133036), (158, 117038), (278, 66518), (316, 58519), (421, 43924), (556, 33259), (842, 21962), (1684, 10981)]