21939712

素因数分解:

$2^9\times {\mathrm{73}}^1\times {\mathrm{587}}^1$

素因数の和:678

約数の個数: 40

約数和(自身を含む): 44512776

約数和(自身を除く): 22573064

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 256, 292, 512, 584, 587, 1168, 1174, 2336, 2348, 4672, 4696, 9344, 9392, 18688, 18784, 37376, 37568, 42851, 75136, 85702, 150272, 171404, 300544, 342808, 685616, 1371232, 2742464, 5484928, 10969856, 21939712]

約数ペア:

[(1, 21939712), (2, 10969856), (4, 5484928), (8, 2742464), (16, 1371232), (32, 685616), (64, 342808), (73, 300544), (128, 171404), (146, 150272), (256, 85702), (292, 75136), (512, 42851), (584, 37568), (587, 37376), (1168, 18784), (1174, 18688), (2336, 9392), (2348, 9344), (4672, 4696)]