19984029

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 30576000

約数和(自身を除く): 10591971

約数列:

[1, 3, 13, 19, 39, 57, 149, 181, 247, 447, 543, 741, 1937, 2353, 2831, 3439, 5811, 7059, 8493, 10317, 26969, 36803, 44707, 80907, 110409, 134121, 350597, 512411, 1051791, 1537233, 6661343, 19984029]

約数ペア:

[(1, 19984029), (3, 6661343), (13, 1537233), (19, 1051791), (39, 512411), (57, 350597), (149, 134121), (181, 110409), (247, 80907), (447, 44707), (543, 36803), (741, 26969), (1937, 10317), (2353, 8493), (2831, 7059), (3439, 5811)]