21435136

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 45981824

約数和(自身を除く): 24546688

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 73, 74, 124, 128, 146, 148, 248, 256, 292, 296, 496, 584, 592, 992, 1147, 1168, 1184, 1984, 2263, 2294, 2336, 2368, 2701, 3968, 4526, 4588, 4672, 4736, 5402, 7936, 9052, 9176, 9344, 9472, 10804, 18104, 18352, 18688, 21608, 36208, 36704, 43216, 72416, 73408, 83731, 86432, 144832, 146816, 167462, 172864, 289664, 293632, 334924, 345728, 579328, 669848, 691456, 1339696, 2679392, 5358784, 10717568, 21435136]

約数ペア:

[(1, 21435136), (2, 10717568), (4, 5358784), (8, 2679392), (16, 1339696), (31, 691456), (32, 669848), (37, 579328), (62, 345728), (64, 334924), (73, 293632), (74, 289664), (124, 172864), (128, 167462), (146, 146816), (148, 144832), (248, 86432), (256, 83731), (292, 73408), (296, 72416), (496, 43216), (584, 36704), (592, 36208), (992, 21608), (1147, 18688), (1168, 18352), (1184, 18104), (1984, 10804), (2263, 9472), (2294, 9344), (2336, 9176), (2368, 9052), (2701, 7936), (3968, 5402), (4526, 4736), (4588, 4672)]