21419456

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19687}}^1$

素因数の和:19716

約数の個数: 28

約数和(自身を含む): 45006768

約数和(自身を除く): 23587312

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 19687, 39374, 78748, 157496, 314992, 334679, 629984, 669358, 1259968, 1338716, 2677432, 5354864, 10709728, 21419456]

約数ペア:

[(1, 21419456), (2, 10709728), (4, 5354864), (8, 2677432), (16, 1338716), (17, 1259968), (32, 669358), (34, 629984), (64, 334679), (68, 314992), (136, 157496), (272, 78748), (544, 39374), (1088, 19687)]