20218536

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21601}}^1$

素因数の和:21626

約数の個数: 48

約数和(自身を含む): 58973460

約数和(自身を除く): 38754924

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21601, 43202, 64803, 86404, 129606, 172808, 194409, 259212, 280813, 388818, 518424, 561626, 777636, 842439, 1123252, 1555272, 1684878, 2246504, 2527317, 3369756, 5054634, 6739512, 10109268, 20218536]

約数ペア:

[(1, 20218536), (2, 10109268), (3, 6739512), (4, 5054634), (6, 3369756), (8, 2527317), (9, 2246504), (12, 1684878), (13, 1555272), (18, 1123252), (24, 842439), (26, 777636), (36, 561626), (39, 518424), (52, 388818), (72, 280813), (78, 259212), (104, 194409), (117, 172808), (156, 129606), (234, 86404), (312, 64803), (468, 43202), (936, 21601)]