21406464

素因数分解:

$2^8\times 3^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:207

約数の個数: 144

約数和(自身を含む): 67043200

約数和(自身を除く): 45636736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 72, 76, 96, 108, 114, 128, 144, 152, 163, 171, 192, 216, 228, 256, 288, 304, 326, 342, 384, 432, 456, 489, 513, 576, 608, 652, 684, 768, 864, 912, 978, 1026, 1152, 1216, 1304, 1368, 1467, 1728, 1824, 1956, 2052, 2304, 2432, 2608, 2736, 2934, 3097, 3456, 3648, 3912, 4104, 4401, 4864, 5216, 5472, 5868, 6194, 6912, 7296, 7824, 8208, 8802, 9291, 10432, 10944, 11736, 12388, 14592, 15648, 16416, 17604, 18582, 20864, 21888, 23472, 24776, 27873, 31296, 32832, 35208, 37164, 41728, 43776, 46944, 49552, 55746, 62592, 65664, 70416, 74328, 83619, 93888, 99104, 111492, 125184, 131328, 140832, 148656, 167238, 187776, 198208, 222984, 281664, 297312, 334476, 375552, 396416, 445968, 563328, 594624, 668952, 792832, 891936, 1126656, 1189248, 1337904, 1783872, 2378496, 2675808, 3567744, 5351616, 7135488, 10703232, 21406464]

約数ペア:

[(1, 21406464), (2, 10703232), (3, 7135488), (4, 5351616), (6, 3567744), (8, 2675808), (9, 2378496), (12, 1783872), (16, 1337904), (18, 1189248), (19, 1126656), (24, 891936), (27, 792832), (32, 668952), (36, 594624), (38, 563328), (48, 445968), (54, 396416), (57, 375552), (64, 334476), (72, 297312), (76, 281664), (96, 222984), (108, 198208), (114, 187776), (128, 167238), (144, 148656), (152, 140832), (163, 131328), (171, 125184), (192, 111492), (216, 99104), (228, 93888), (256, 83619), (288, 74328), (304, 70416), (326, 65664), (342, 62592), (384, 55746), (432, 49552), (456, 46944), (489, 43776), (513, 41728), (576, 37164), (608, 35208), (652, 32832), (684, 31296), (768, 27873), (864, 24776), (912, 23472), (978, 21888), (1026, 20864), (1152, 18582), (1216, 17604), (1304, 16416), (1368, 15648), (1467, 14592), (1728, 12388), (1824, 11736), (1956, 10944), (2052, 10432), (2304, 9291), (2432, 8802), (2608, 8208), (2736, 7824), (2934, 7296), (3097, 6912), (3456, 6194), (3648, 5868), (3912, 5472), (4104, 5216), (4401, 4864)]