51816401

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1303}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 70103040

約数和(自身を除く): 18286639

約数列:

[1, 7, 13, 19, 23, 91, 133, 161, 247, 299, 437, 1303, 1729, 2093, 3059, 5681, 9121, 16939, 24757, 29969, 39767, 118573, 173299, 209783, 321841, 389597, 569411, 2252887, 2727179, 3985877, 7402343, 51816401]

約数ペア:

[(1, 51816401), (7, 7402343), (13, 3985877), (19, 2727179), (23, 2252887), (91, 569411), (133, 389597), (161, 321841), (247, 209783), (299, 173299), (437, 118573), (1303, 39767), (1729, 29969), (2093, 24757), (3059, 16939), (5681, 9121)]