20207187

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2243}}^1$

素因数の和:2280

約数の個数: 48

約数和(自身を含む): 39207168

約数和(自身を除く): 18999981

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2243, 3003, 6729, 9009, 15701, 20187, 24673, 29159, 47103, 74019, 87477, 141309, 172711, 204113, 222057, 262431, 320749, 518133, 612339, 962247, 1554399, 1837017, 2245243, 2886741, 6735729, 20207187]

約数ペア:

[(1, 20207187), (3, 6735729), (7, 2886741), (9, 2245243), (11, 1837017), (13, 1554399), (21, 962247), (33, 612339), (39, 518133), (63, 320749), (77, 262431), (91, 222057), (99, 204113), (117, 172711), (143, 141309), (231, 87477), (273, 74019), (429, 47103), (693, 29159), (819, 24673), (1001, 20187), (1287, 15701), (2243, 9009), (3003, 6729)]