20905704

素因数分解:

$2^3\times 3^2\times {\mathrm{103}}^1\times {\mathrm{2819}}^1$

素因数の和:2934

約数の個数: 48

約数和(自身を含む): 57189600

約数和(自身を除く): 36283896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 103, 206, 309, 412, 618, 824, 927, 1236, 1854, 2472, 2819, 3708, 5638, 7416, 8457, 11276, 16914, 22552, 25371, 33828, 50742, 67656, 101484, 202968, 290357, 580714, 871071, 1161428, 1742142, 2322856, 2613213, 3484284, 5226426, 6968568, 10452852, 20905704]

約数ペア:

[(1, 20905704), (2, 10452852), (3, 6968568), (4, 5226426), (6, 3484284), (8, 2613213), (9, 2322856), (12, 1742142), (18, 1161428), (24, 871071), (36, 580714), (72, 290357), (103, 202968), (206, 101484), (309, 67656), (412, 50742), (618, 33828), (824, 25371), (927, 22552), (1236, 16914), (1854, 11276), (2472, 8457), (2819, 7416), (3708, 5638)]