21235968

素因数分解:

$2^8\times 3^2\times {\mathrm{13}}^1\times {\mathrm{709}}^1$

素因数の和:744

約数の個数: 108

約数和(自身を含む): 66031420

約数和(自身を除く): 44795452

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 128, 144, 156, 192, 208, 234, 256, 288, 312, 384, 416, 468, 576, 624, 709, 768, 832, 936, 1152, 1248, 1418, 1664, 1872, 2127, 2304, 2496, 2836, 3328, 3744, 4254, 4992, 5672, 6381, 7488, 8508, 9217, 9984, 11344, 12762, 14976, 17016, 18434, 22688, 25524, 27651, 29952, 34032, 36868, 45376, 51048, 55302, 68064, 73736, 82953, 90752, 102096, 110604, 136128, 147472, 165906, 181504, 204192, 221208, 272256, 294944, 331812, 408384, 442416, 544512, 589888, 663624, 816768, 884832, 1179776, 1327248, 1633536, 1769664, 2359552, 2654496, 3539328, 5308992, 7078656, 10617984, 21235968]

約数ペア:

[(1, 21235968), (2, 10617984), (3, 7078656), (4, 5308992), (6, 3539328), (8, 2654496), (9, 2359552), (12, 1769664), (13, 1633536), (16, 1327248), (18, 1179776), (24, 884832), (26, 816768), (32, 663624), (36, 589888), (39, 544512), (48, 442416), (52, 408384), (64, 331812), (72, 294944), (78, 272256), (96, 221208), (104, 204192), (117, 181504), (128, 165906), (144, 147472), (156, 136128), (192, 110604), (208, 102096), (234, 90752), (256, 82953), (288, 73736), (312, 68064), (384, 55302), (416, 51048), (468, 45376), (576, 36868), (624, 34032), (709, 29952), (768, 27651), (832, 25524), (936, 22688), (1152, 18434), (1248, 17016), (1418, 14976), (1664, 12762), (1872, 11344), (2127, 9984), (2304, 9217), (2496, 8508), (2836, 7488), (3328, 6381), (3744, 5672), (4254, 4992)]