20919672

素因数分解:

$2^3\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 60231600

約数和(自身を除く): 39311928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 29, 36, 43, 58, 72, 86, 87, 116, 129, 172, 174, 232, 233, 258, 261, 344, 348, 387, 466, 516, 522, 696, 699, 774, 932, 1032, 1044, 1247, 1398, 1548, 1864, 2088, 2097, 2494, 2796, 3096, 3741, 4194, 4988, 5592, 6757, 7482, 8388, 9976, 10019, 11223, 13514, 14964, 16776, 20038, 20271, 22446, 27028, 29928, 30057, 40076, 40542, 44892, 54056, 60114, 60813, 80152, 81084, 89784, 90171, 120228, 121626, 162168, 180342, 240456, 243252, 290551, 360684, 486504, 581102, 721368, 871653, 1162204, 1743306, 2324408, 2614959, 3486612, 5229918, 6973224, 10459836, 20919672]

約数ペア:

[(1, 20919672), (2, 10459836), (3, 6973224), (4, 5229918), (6, 3486612), (8, 2614959), (9, 2324408), (12, 1743306), (18, 1162204), (24, 871653), (29, 721368), (36, 581102), (43, 486504), (58, 360684), (72, 290551), (86, 243252), (87, 240456), (116, 180342), (129, 162168), (172, 121626), (174, 120228), (232, 90171), (233, 89784), (258, 81084), (261, 80152), (344, 60813), (348, 60114), (387, 54056), (466, 44892), (516, 40542), (522, 40076), (696, 30057), (699, 29928), (774, 27028), (932, 22446), (1032, 20271), (1044, 20038), (1247, 16776), (1398, 14964), (1548, 13514), (1864, 11223), (2088, 10019), (2097, 9976), (2494, 8388), (2796, 7482), (3096, 6757), (3741, 5592), (4194, 4988)]