21261744

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 160

約数和(自身を含む): 71424000

約数和(自身を除く): 50162256

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 79, 84, 89, 108, 112, 126, 144, 158, 168, 178, 189, 216, 237, 252, 267, 316, 336, 356, 378, 432, 474, 504, 534, 553, 623, 632, 711, 712, 756, 801, 948, 1008, 1068, 1106, 1246, 1264, 1422, 1424, 1512, 1602, 1659, 1869, 1896, 2133, 2136, 2212, 2403, 2492, 2844, 3024, 3204, 3318, 3738, 3792, 4266, 4272, 4424, 4806, 4977, 4984, 5607, 5688, 6408, 6636, 7031, 7476, 8532, 8848, 9612, 9954, 9968, 11214, 11376, 12816, 13272, 14062, 14931, 14952, 16821, 17064, 19224, 19908, 21093, 22428, 26544, 28124, 29862, 29904, 33642, 34128, 38448, 39816, 42186, 44856, 49217, 56248, 59724, 63279, 67284, 79632, 84372, 89712, 98434, 112496, 119448, 126558, 134568, 147651, 168744, 189837, 196868, 238896, 253116, 269136, 295302, 337488, 379674, 393736, 442953, 506232, 590604, 759348, 787472, 885906, 1012464, 1181208, 1328859, 1518696, 1771812, 2362416, 2657718, 3037392, 3543624, 5315436, 7087248, 10630872, 21261744]

約数ペア:

[(1, 21261744), (2, 10630872), (3, 7087248), (4, 5315436), (6, 3543624), (7, 3037392), (8, 2657718), (9, 2362416), (12, 1771812), (14, 1518696), (16, 1328859), (18, 1181208), (21, 1012464), (24, 885906), (27, 787472), (28, 759348), (36, 590604), (42, 506232), (48, 442953), (54, 393736), (56, 379674), (63, 337488), (72, 295302), (79, 269136), (84, 253116), (89, 238896), (108, 196868), (112, 189837), (126, 168744), (144, 147651), (158, 134568), (168, 126558), (178, 119448), (189, 112496), (216, 98434), (237, 89712), (252, 84372), (267, 79632), (316, 67284), (336, 63279), (356, 59724), (378, 56248), (432, 49217), (474, 44856), (504, 42186), (534, 39816), (553, 38448), (623, 34128), (632, 33642), (711, 29904), (712, 29862), (756, 28124), (801, 26544), (948, 22428), (1008, 21093), (1068, 19908), (1106, 19224), (1246, 17064), (1264, 16821), (1422, 14952), (1424, 14931), (1512, 14062), (1602, 13272), (1659, 12816), (1869, 11376), (1896, 11214), (2133, 9968), (2136, 9954), (2212, 9612), (2403, 8848), (2492, 8532), (2844, 7476), (3024, 7031), (3204, 6636), (3318, 6408), (3738, 5688), (3792, 5607), (4266, 4984), (4272, 4977), (4424, 4806)]