20946912

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 65902032

約数和(自身を除く): 44955120

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 61, 73, 84, 96, 98, 112, 122, 146, 147, 168, 183, 196, 219, 224, 244, 292, 294, 336, 366, 392, 427, 438, 488, 511, 584, 588, 672, 732, 784, 854, 876, 976, 1022, 1168, 1176, 1281, 1464, 1533, 1568, 1708, 1752, 1952, 2044, 2336, 2352, 2562, 2928, 2989, 3066, 3416, 3504, 3577, 4088, 4453, 4704, 5124, 5856, 5978, 6132, 6832, 7008, 7154, 8176, 8906, 8967, 10248, 10731, 11956, 12264, 13359, 13664, 14308, 16352, 17812, 17934, 20496, 21462, 23912, 24528, 26718, 28616, 31171, 35624, 35868, 40992, 42924, 47824, 49056, 53436, 57232, 62342, 71248, 71736, 85848, 93513, 95648, 106872, 114464, 124684, 142496, 143472, 171696, 187026, 213744, 218197, 249368, 286944, 343392, 374052, 427488, 436394, 498736, 654591, 748104, 872788, 997472, 1309182, 1496208, 1745576, 2618364, 2992416, 3491152, 5236728, 6982304, 10473456, 20946912]

約数ペア:

[(1, 20946912), (2, 10473456), (3, 6982304), (4, 5236728), (6, 3491152), (7, 2992416), (8, 2618364), (12, 1745576), (14, 1496208), (16, 1309182), (21, 997472), (24, 872788), (28, 748104), (32, 654591), (42, 498736), (48, 436394), (49, 427488), (56, 374052), (61, 343392), (73, 286944), (84, 249368), (96, 218197), (98, 213744), (112, 187026), (122, 171696), (146, 143472), (147, 142496), (168, 124684), (183, 114464), (196, 106872), (219, 95648), (224, 93513), (244, 85848), (292, 71736), (294, 71248), (336, 62342), (366, 57232), (392, 53436), (427, 49056), (438, 47824), (488, 42924), (511, 40992), (584, 35868), (588, 35624), (672, 31171), (732, 28616), (784, 26718), (854, 24528), (876, 23912), (976, 21462), (1022, 20496), (1168, 17934), (1176, 17812), (1281, 16352), (1464, 14308), (1533, 13664), (1568, 13359), (1708, 12264), (1752, 11956), (1952, 10731), (2044, 10248), (2336, 8967), (2352, 8906), (2562, 8176), (2928, 7154), (2989, 7008), (3066, 6832), (3416, 6132), (3504, 5978), (3577, 5856), (4088, 5124), (4453, 4704)]