20616988

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43313}}^1$

素因数の和:43341

約数の個数: 24

約数和(自身を含む): 43660512

約数和(自身を除く): 23043524

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 43313, 86626, 173252, 303191, 606382, 736321, 1212764, 1472642, 2945284, 5154247, 10308494, 20616988]

約数ペア:

[(1, 20616988), (2, 10308494), (4, 5154247), (7, 2945284), (14, 1472642), (17, 1212764), (28, 736321), (34, 606382), (68, 303191), (119, 173252), (238, 86626), (476, 43313)]