20786864

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5987}}^1$

素因数の和:6033

約数の個数: 40

約数和(自身を含む): 47520768

約数和(自身を除く): 26733904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5987, 11974, 23948, 41909, 47896, 83818, 95792, 167636, 185597, 335272, 371194, 670544, 742388, 1299179, 1484776, 2598358, 2969552, 5196716, 10393432, 20786864]

約数ペア:

[(1, 20786864), (2, 10393432), (4, 5196716), (7, 2969552), (8, 2598358), (14, 1484776), (16, 1299179), (28, 742388), (31, 670544), (56, 371194), (62, 335272), (112, 185597), (124, 167636), (217, 95792), (248, 83818), (434, 47896), (496, 41909), (868, 23948), (1736, 11974), (3472, 5987)]