18220216

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4457}}^1$

素因数の和:4543

約数の個数: 32

約数和(自身を含む): 39587040

約数和(自身を除く): 21366824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 4457, 8914, 17828, 31199, 35656, 62398, 124796, 249592, 325361, 650722, 1301444, 2277527, 2602888, 4555054, 9110108, 18220216]

約数ペア:

[(1, 18220216), (2, 9110108), (4, 4555054), (7, 2602888), (8, 2277527), (14, 1301444), (28, 650722), (56, 325361), (73, 249592), (146, 124796), (292, 62398), (511, 35656), (584, 31199), (1022, 17828), (2044, 8914), (4088, 4457)]