21385664

素因数分解:

$2^6\times {\mathrm{389}}^1\times {\mathrm{859}}^1$

素因数の和:1260

約数の個数: 28

約数和(自身を含む): 42595800

約数和(自身を除く): 21210136

約数列:

[1, 2, 4, 8, 16, 32, 64, 389, 778, 859, 1556, 1718, 3112, 3436, 6224, 6872, 12448, 13744, 24896, 27488, 54976, 334151, 668302, 1336604, 2673208, 5346416, 10692832, 21385664]

約数ペア:

[(1, 21385664), (2, 10692832), (4, 5346416), (8, 2673208), (16, 1336604), (32, 668302), (64, 334151), (389, 54976), (778, 27488), (859, 24896), (1556, 13744), (1718, 12448), (3112, 6872), (3436, 6224)]