28945371

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{463}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 47810560

約数和(自身を除く): 18865189

約数列:

[1, 3, 7, 13, 21, 39, 91, 229, 273, 463, 687, 1389, 1603, 2977, 3241, 4809, 6019, 8931, 9723, 18057, 20839, 42133, 62517, 106027, 126399, 318081, 742189, 1378351, 2226567, 4135053, 9648457, 28945371]

約数ペア:

[(1, 28945371), (3, 9648457), (7, 4135053), (13, 2226567), (21, 1378351), (39, 742189), (91, 318081), (229, 126399), (273, 106027), (463, 62517), (687, 42133), (1389, 20839), (1603, 18057), (2977, 9723), (3241, 8931), (4809, 6019)]