21491230

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{757}}^1$

素因数の和:948

約数の個数: 32

約数和(自身を含む): 41259456

約数和(自身を除く): 19768226

約数列:

[1, 2, 5, 10, 17, 34, 85, 167, 170, 334, 757, 835, 1514, 1670, 2839, 3785, 5678, 7570, 12869, 14195, 25738, 28390, 64345, 126419, 128690, 252838, 632095, 1264190, 2149123, 4298246, 10745615, 21491230]

約数ペア:

[(1, 21491230), (2, 10745615), (5, 4298246), (10, 2149123), (17, 1264190), (34, 632095), (85, 252838), (167, 128690), (170, 126419), (334, 64345), (757, 28390), (835, 25738), (1514, 14195), (1670, 12869), (2839, 7570), (3785, 5678)]