18990398

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{601}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 34039488

約数和(自身を除く): 15049090

約数列:

[1, 2, 7, 14, 37, 61, 74, 122, 259, 427, 518, 601, 854, 1202, 2257, 4207, 4514, 8414, 15799, 22237, 31598, 36661, 44474, 73322, 155659, 256627, 311318, 513254, 1356457, 2712914, 9495199, 18990398]

約数ペア:

[(1, 18990398), (2, 9495199), (7, 2712914), (14, 1356457), (37, 513254), (61, 311318), (74, 256627), (122, 155659), (259, 73322), (427, 44474), (518, 36661), (601, 31598), (854, 22237), (1202, 15799), (2257, 8414), (4207, 4514)]