21434392

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12347}}^1$

素因数の和:12391

約数の個数: 32

約数和(自身を含む): 47416320

約数和(自身を除く): 25981928

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12347, 24694, 49388, 86429, 98776, 172858, 345716, 382757, 691432, 765514, 1531028, 2679299, 3062056, 5358598, 10717196, 21434392]

約数ペア:

[(1, 21434392), (2, 10717196), (4, 5358598), (7, 3062056), (8, 2679299), (14, 1531028), (28, 765514), (31, 691432), (56, 382757), (62, 345716), (124, 172858), (217, 98776), (248, 86429), (434, 49388), (868, 24694), (1736, 12347)]