19778388

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{977}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 53015424

約数和(自身を除く): 33237036

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 241, 482, 723, 964, 977, 1446, 1687, 1954, 2892, 2931, 3374, 3908, 5061, 5862, 6748, 6839, 10122, 11724, 13678, 20244, 20517, 27356, 41034, 82068, 235457, 470914, 706371, 941828, 1412742, 1648199, 2825484, 3296398, 4944597, 6592796, 9889194, 19778388]

約数ペア:

[(1, 19778388), (2, 9889194), (3, 6592796), (4, 4944597), (6, 3296398), (7, 2825484), (12, 1648199), (14, 1412742), (21, 941828), (28, 706371), (42, 470914), (84, 235457), (241, 82068), (482, 41034), (723, 27356), (964, 20517), (977, 20244), (1446, 13678), (1687, 11724), (1954, 10122), (2892, 6839), (2931, 6748), (3374, 5862), (3908, 5061)]