21393664

素因数分解:

$2^8\times {\mathrm{193}}^1\times {\mathrm{433}}^1$

素因数の和:642

約数の個数: 36

約数和(自身を含む): 43024156

約数和(自身を除く): 21630492

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 193, 256, 386, 433, 772, 866, 1544, 1732, 3088, 3464, 6176, 6928, 12352, 13856, 24704, 27712, 49408, 55424, 83569, 110848, 167138, 334276, 668552, 1337104, 2674208, 5348416, 10696832, 21393664]

約数ペア:

[(1, 21393664), (2, 10696832), (4, 5348416), (8, 2674208), (16, 1337104), (32, 668552), (64, 334276), (128, 167138), (193, 110848), (256, 83569), (386, 55424), (433, 49408), (772, 27712), (866, 24704), (1544, 13856), (1732, 12352), (3088, 6928), (3464, 6176)]