21005106

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2074

約数の個数: 32

約数和(自身を含む): 44193600

約数和(自身を除く): 23188494

約数列:

[1, 2, 3, 6, 29, 58, 61, 87, 122, 174, 183, 366, 1769, 1979, 3538, 3958, 5307, 5937, 10614, 11874, 57391, 114782, 120719, 172173, 241438, 344346, 362157, 724314, 3500851, 7001702, 10502553, 21005106]

約数ペア:

[(1, 21005106), (2, 10502553), (3, 7001702), (6, 3500851), (29, 724314), (58, 362157), (61, 344346), (87, 241438), (122, 172173), (174, 120719), (183, 114782), (366, 57391), (1769, 11874), (1979, 10614), (3538, 5937), (3958, 5307)]