9781838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 16793568

約数和(自身を除く): 7011730

約数列:

[1, 2, 11, 22, 37, 61, 74, 122, 197, 394, 407, 671, 814, 1342, 2167, 2257, 4334, 4514, 7289, 12017, 14578, 24034, 24827, 49654, 80179, 132187, 160358, 264374, 444629, 889258, 4890919, 9781838]

約数ペア:

[(1, 9781838), (2, 4890919), (11, 889258), (22, 444629), (37, 264374), (61, 160358), (74, 132187), (122, 80179), (197, 49654), (394, 24827), (407, 24034), (671, 14578), (814, 12017), (1342, 7289), (2167, 4514), (2257, 4334)]