21838128

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{443}}^1$

素因数の和:546

約数の個数: 80

約数和(自身を含む): 61662720

約数和(自身を除く): 39824592

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 79, 104, 156, 158, 208, 237, 312, 316, 443, 474, 624, 632, 886, 948, 1027, 1264, 1329, 1772, 1896, 2054, 2658, 3081, 3544, 3792, 4108, 5316, 5759, 6162, 7088, 8216, 10632, 11518, 12324, 16432, 17277, 21264, 23036, 24648, 34554, 34997, 46072, 49296, 69108, 69994, 92144, 104991, 138216, 139988, 209982, 276432, 279976, 419964, 454961, 559952, 839928, 909922, 1364883, 1679856, 1819844, 2729766, 3639688, 5459532, 7279376, 10919064, 21838128]

約数ペア:

[(1, 21838128), (2, 10919064), (3, 7279376), (4, 5459532), (6, 3639688), (8, 2729766), (12, 1819844), (13, 1679856), (16, 1364883), (24, 909922), (26, 839928), (39, 559952), (48, 454961), (52, 419964), (78, 279976), (79, 276432), (104, 209982), (156, 139988), (158, 138216), (208, 104991), (237, 92144), (312, 69994), (316, 69108), (443, 49296), (474, 46072), (624, 34997), (632, 34554), (886, 24648), (948, 23036), (1027, 21264), (1264, 17277), (1329, 16432), (1772, 12324), (1896, 11518), (2054, 10632), (2658, 8216), (3081, 7088), (3544, 6162), (3792, 5759), (4108, 5316)]