21948928

素因数分解:

$2^9\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:444

約数の個数: 40

約数和(自身を含む): 44291808

約数和(自身を除く): 22342880

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 163, 256, 263, 326, 512, 526, 652, 1052, 1304, 2104, 2608, 4208, 5216, 8416, 10432, 16832, 20864, 33664, 41728, 42869, 67328, 83456, 85738, 134656, 171476, 342952, 685904, 1371808, 2743616, 5487232, 10974464, 21948928]

約数ペア:

[(1, 21948928), (2, 10974464), (4, 5487232), (8, 2743616), (16, 1371808), (32, 685904), (64, 342952), (128, 171476), (163, 134656), (256, 85738), (263, 83456), (326, 67328), (512, 42869), (526, 41728), (652, 33664), (1052, 20864), (1304, 16832), (2104, 10432), (2608, 8416), (4208, 5216)]