21540552

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{587}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 59270400

約数和(自身を除く): 37729848

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 139, 264, 278, 417, 556, 587, 834, 1112, 1174, 1529, 1668, 1761, 2348, 3058, 3336, 3522, 4587, 4696, 6116, 6457, 7044, 9174, 12232, 12914, 14088, 18348, 19371, 25828, 36696, 38742, 51656, 77484, 81593, 154968, 163186, 244779, 326372, 489558, 652744, 897523, 979116, 1795046, 1958232, 2692569, 3590092, 5385138, 7180184, 10770276, 21540552]

約数ペア:

[(1, 21540552), (2, 10770276), (3, 7180184), (4, 5385138), (6, 3590092), (8, 2692569), (11, 1958232), (12, 1795046), (22, 979116), (24, 897523), (33, 652744), (44, 489558), (66, 326372), (88, 244779), (132, 163186), (139, 154968), (264, 81593), (278, 77484), (417, 51656), (556, 38742), (587, 36696), (834, 25828), (1112, 19371), (1174, 18348), (1529, 14088), (1668, 12914), (1761, 12232), (2348, 9174), (3058, 7044), (3336, 6457), (3522, 6116), (4587, 4696)]