21180654

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4651}}^1$

素因数の和:4693

約数の個数: 48

約数和(自身を含む): 52251264

約数和(自身を除く): 31070610

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 33, 46, 66, 69, 99, 138, 198, 207, 253, 414, 506, 759, 1518, 2277, 4554, 4651, 9302, 13953, 27906, 41859, 51161, 83718, 102322, 106973, 153483, 213946, 306966, 320919, 460449, 641838, 920898, 962757, 1176703, 1925514, 2353406, 3530109, 7060218, 10590327, 21180654]

約数ペア:

[(1, 21180654), (2, 10590327), (3, 7060218), (6, 3530109), (9, 2353406), (11, 1925514), (18, 1176703), (22, 962757), (23, 920898), (33, 641838), (46, 460449), (66, 320919), (69, 306966), (99, 213946), (138, 153483), (198, 106973), (207, 102322), (253, 83718), (414, 51161), (506, 41859), (759, 27906), (1518, 13953), (2277, 9302), (4554, 4651)]