18985808

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10501}}^1$

素因数の和:10622

約数の個数: 20

約数和(自身を含む): 37114068

約数和(自身を除く): 18128260

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10501, 21002, 42004, 84008, 168016, 1186613, 2373226, 4746452, 9492904, 18985808]

約数ペア:

[(1, 18985808), (2, 9492904), (4, 4746452), (8, 2373226), (16, 1186613), (113, 168016), (226, 84008), (452, 42004), (904, 21002), (1808, 10501)]