21211008

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:644

約数の個数: 128

約数和(自身を含む): 69457920

約数和(自身を除く): 48246912

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 52, 56, 64, 78, 84, 91, 96, 104, 112, 128, 156, 168, 182, 192, 208, 224, 273, 312, 336, 364, 384, 416, 448, 546, 607, 624, 672, 728, 832, 896, 1092, 1214, 1248, 1344, 1456, 1664, 1821, 2184, 2428, 2496, 2688, 2912, 3642, 4249, 4368, 4856, 4992, 5824, 7284, 7891, 8498, 8736, 9712, 11648, 12747, 14568, 15782, 16996, 17472, 19424, 23673, 25494, 29136, 31564, 33992, 34944, 38848, 47346, 50988, 55237, 58272, 63128, 67984, 77696, 94692, 101976, 110474, 116544, 126256, 135968, 165711, 189384, 203952, 220948, 233088, 252512, 271936, 331422, 378768, 407904, 441896, 505024, 543872, 662844, 757536, 815808, 883792, 1010048, 1325688, 1515072, 1631616, 1767584, 2651376, 3030144, 3535168, 5302752, 7070336, 10605504, 21211008]

約数ペア:

[(1, 21211008), (2, 10605504), (3, 7070336), (4, 5302752), (6, 3535168), (7, 3030144), (8, 2651376), (12, 1767584), (13, 1631616), (14, 1515072), (16, 1325688), (21, 1010048), (24, 883792), (26, 815808), (28, 757536), (32, 662844), (39, 543872), (42, 505024), (48, 441896), (52, 407904), (56, 378768), (64, 331422), (78, 271936), (84, 252512), (91, 233088), (96, 220948), (104, 203952), (112, 189384), (128, 165711), (156, 135968), (168, 126256), (182, 116544), (192, 110474), (208, 101976), (224, 94692), (273, 77696), (312, 67984), (336, 63128), (364, 58272), (384, 55237), (416, 50988), (448, 47346), (546, 38848), (607, 34944), (624, 33992), (672, 31564), (728, 29136), (832, 25494), (896, 23673), (1092, 19424), (1214, 17472), (1248, 16996), (1344, 15782), (1456, 14568), (1664, 12747), (1821, 11648), (2184, 9712), (2428, 8736), (2496, 8498), (2688, 7891), (2912, 7284), (3642, 5824), (4249, 4992), (4368, 4856)]