19825408

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{1801}}^1$

素因数の和:1860

約数の個数: 36

約数和(自身を含む): 40516168

約数和(自身を除く): 20690760

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 688, 1376, 1801, 2752, 3602, 5504, 7204, 11008, 14408, 28816, 57632, 77443, 115264, 154886, 230528, 309772, 461056, 619544, 1239088, 2478176, 4956352, 9912704, 19825408]

約数ペア:

[(1, 19825408), (2, 9912704), (4, 4956352), (8, 2478176), (16, 1239088), (32, 619544), (43, 461056), (64, 309772), (86, 230528), (128, 154886), (172, 115264), (256, 77443), (344, 57632), (688, 28816), (1376, 14408), (1801, 11008), (2752, 7204), (3602, 5504)]