31597618

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 53222400

約数和(自身を除く): 21624782

約数列:

[1, 2, 13, 26, 31, 62, 197, 199, 394, 398, 403, 806, 2561, 2587, 5122, 5174, 6107, 6169, 12214, 12338, 39203, 78406, 79391, 80197, 158782, 160394, 509639, 1019278, 1215293, 2430586, 15798809, 31597618]

約数ペア:

[(1, 31597618), (2, 15798809), (13, 2430586), (26, 1215293), (31, 1019278), (62, 509639), (197, 160394), (199, 158782), (394, 80197), (398, 79391), (403, 78406), (806, 39203), (2561, 12338), (2587, 12214), (5122, 6169), (5174, 6107)]