21683968

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1193}}^1$

素因数の和:1280

約数の個数: 36

約数和(自身を含む): 43929648

約数和(自身を除く): 22245680

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1136, 1193, 2272, 2386, 4544, 4772, 9088, 9544, 18176, 19088, 38176, 76352, 84703, 152704, 169406, 305408, 338812, 677624, 1355248, 2710496, 5420992, 10841984, 21683968]

約数ペア:

[(1, 21683968), (2, 10841984), (4, 5420992), (8, 2710496), (16, 1355248), (32, 677624), (64, 338812), (71, 305408), (128, 169406), (142, 152704), (256, 84703), (284, 76352), (568, 38176), (1136, 19088), (1193, 18176), (2272, 9544), (2386, 9088), (4544, 4772)]