21911808

素因数分解:

$2^8\times 3^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 59096128

約数和(自身を除く): 37184320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 103, 128, 192, 206, 256, 277, 309, 384, 412, 554, 618, 768, 824, 831, 1108, 1236, 1648, 1662, 2216, 2472, 3296, 3324, 4432, 4944, 6592, 6648, 8864, 9888, 13184, 13296, 17728, 19776, 26368, 26592, 28531, 35456, 39552, 53184, 57062, 70912, 79104, 85593, 106368, 114124, 171186, 212736, 228248, 342372, 456496, 684744, 912992, 1369488, 1825984, 2738976, 3651968, 5477952, 7303936, 10955904, 21911808]

約数ペア:

[(1, 21911808), (2, 10955904), (3, 7303936), (4, 5477952), (6, 3651968), (8, 2738976), (12, 1825984), (16, 1369488), (24, 912992), (32, 684744), (48, 456496), (64, 342372), (96, 228248), (103, 212736), (128, 171186), (192, 114124), (206, 106368), (256, 85593), (277, 79104), (309, 70912), (384, 57062), (412, 53184), (554, 39552), (618, 35456), (768, 28531), (824, 26592), (831, 26368), (1108, 19776), (1236, 17728), (1648, 13296), (1662, 13184), (2216, 9888), (2472, 8864), (3296, 6648), (3324, 6592), (4432, 4944)]