20285874

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1229}}^1$

素因数の和:1375

約数の個数: 48

約数和(自身を含む): 50656320

約数和(自身を除く): 30370446

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 131, 262, 393, 786, 917, 1179, 1229, 1834, 2358, 2458, 2751, 3687, 5502, 7374, 8253, 8603, 11061, 16506, 17206, 22122, 25809, 51618, 77427, 154854, 160999, 321998, 482997, 965994, 1126993, 1448991, 2253986, 2897982, 3380979, 6761958, 10142937, 20285874]

約数ペア:

[(1, 20285874), (2, 10142937), (3, 6761958), (6, 3380979), (7, 2897982), (9, 2253986), (14, 1448991), (18, 1126993), (21, 965994), (42, 482997), (63, 321998), (126, 160999), (131, 154854), (262, 77427), (393, 51618), (786, 25809), (917, 22122), (1179, 17206), (1229, 16506), (1834, 11061), (2358, 8603), (2458, 8253), (2751, 7374), (3687, 5502)]