1722447

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 2661984

約数和(自身を除く): 939537

約数列:

[1, 3, 9, 23, 53, 69, 157, 159, 207, 471, 477, 1219, 1413, 3611, 3657, 8321, 10833, 10971, 24963, 32499, 74889, 191383, 574149, 1722447]

約数ペア:

[(1, 1722447), (3, 574149), (9, 191383), (23, 74889), (53, 32499), (69, 24963), (157, 10971), (159, 10833), (207, 8321), (471, 3657), (477, 3611), (1219, 1413)]