21495808

素因数分解:

$2^{19}\times {\mathrm{41}}^1$

素因数の和:79

約数の個数: 40

約数和(自身を含む): 44040150

約数和(自身を除く): 22544342

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 256, 328, 512, 656, 1024, 1312, 2048, 2624, 4096, 5248, 8192, 10496, 16384, 20992, 32768, 41984, 65536, 83968, 131072, 167936, 262144, 335872, 524288, 671744, 1343488, 2686976, 5373952, 10747904, 21495808]

約数ペア:

[(1, 21495808), (2, 10747904), (4, 5373952), (8, 2686976), (16, 1343488), (32, 671744), (41, 524288), (64, 335872), (82, 262144), (128, 167936), (164, 131072), (256, 83968), (328, 65536), (512, 41984), (656, 32768), (1024, 20992), (1312, 16384), (2048, 10496), (2624, 8192), (4096, 5248)]