28570269

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{457}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 47192320

約数和(自身を除く): 18622051

約数列:

[1, 3, 7, 13, 21, 39, 91, 229, 273, 457, 687, 1371, 1603, 2977, 3199, 4809, 5941, 8931, 9597, 17823, 20839, 41587, 62517, 104653, 124761, 313959, 732571, 1360489, 2197713, 4081467, 9523423, 28570269]

約数ペア:

[(1, 28570269), (3, 9523423), (7, 4081467), (13, 2197713), (21, 1360489), (39, 732571), (91, 313959), (229, 124761), (273, 104653), (457, 62517), (687, 41587), (1371, 20839), (1603, 17823), (2977, 9597), (3199, 8931), (4809, 5941)]