20921868

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^2\times {\mathrm{1601}}^1$

素因数の和:1636

約数の個数: 72

約数和(自身を含む): 59658480

約数和(自身を除く): 38736612

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 121, 132, 198, 242, 297, 363, 396, 484, 594, 726, 1089, 1188, 1452, 1601, 2178, 3202, 3267, 4356, 4803, 6404, 6534, 9606, 13068, 14409, 17611, 19212, 28818, 35222, 43227, 52833, 57636, 70444, 86454, 105666, 158499, 172908, 193721, 211332, 316998, 387442, 475497, 581163, 633996, 774884, 950994, 1162326, 1743489, 1901988, 2324652, 3486978, 5230467, 6973956, 10460934, 20921868]

約数ペア:

[(1, 20921868), (2, 10460934), (3, 6973956), (4, 5230467), (6, 3486978), (9, 2324652), (11, 1901988), (12, 1743489), (18, 1162326), (22, 950994), (27, 774884), (33, 633996), (36, 581163), (44, 475497), (54, 387442), (66, 316998), (99, 211332), (108, 193721), (121, 172908), (132, 158499), (198, 105666), (242, 86454), (297, 70444), (363, 57636), (396, 52833), (484, 43227), (594, 35222), (726, 28818), (1089, 19212), (1188, 17611), (1452, 14409), (1601, 13068), (2178, 9606), (3202, 6534), (3267, 6404), (4356, 4803)]