19719626

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:458

約数の個数: 24

約数和(自身を含む): 31811340

約数和(自身を除く): 12091714

約数列:

[1, 2, 17, 34, 109, 218, 289, 313, 578, 626, 1853, 3706, 5321, 10642, 31501, 34117, 63002, 68234, 90457, 180914, 579989, 1159978, 9859813, 19719626]

約数ペア:

[(1, 19719626), (2, 9859813), (17, 1159978), (34, 579989), (109, 180914), (218, 90457), (289, 68234), (313, 63002), (578, 34117), (626, 31501), (1853, 10642), (3706, 5321)]