20854288

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14323}}^1$

素因数の和:14351

約数の個数: 40

約数和(自身を含む): 49732928

約数和(自身を除く): 28878640

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14323, 28646, 57292, 100261, 114584, 186199, 200522, 229168, 372398, 401044, 744796, 802088, 1303393, 1489592, 1604176, 2606786, 2979184, 5213572, 10427144, 20854288]

約数ペア:

[(1, 20854288), (2, 10427144), (4, 5213572), (7, 2979184), (8, 2606786), (13, 1604176), (14, 1489592), (16, 1303393), (26, 802088), (28, 744796), (52, 401044), (56, 372398), (91, 229168), (104, 200522), (112, 186199), (182, 114584), (208, 100261), (364, 57292), (728, 28646), (1456, 14323)]