21774501

素因数分解:

$3^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:293

約数の個数: 56

約数和(自身を含む): 39662784

約数和(自身を除く): 17888283

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 243, 251, 357, 459, 567, 729, 753, 1071, 1377, 1701, 1757, 2259, 3213, 4131, 4267, 5103, 5271, 6777, 9639, 12393, 12801, 15813, 20331, 28917, 29869, 38403, 47439, 60993, 86751, 89607, 115209, 142317, 182979, 268821, 345627, 426951, 806463, 1036881, 1280853, 2419389, 3110643, 7258167, 21774501]

約数ペア:

[(1, 21774501), (3, 7258167), (7, 3110643), (9, 2419389), (17, 1280853), (21, 1036881), (27, 806463), (51, 426951), (63, 345627), (81, 268821), (119, 182979), (153, 142317), (189, 115209), (243, 89607), (251, 86751), (357, 60993), (459, 47439), (567, 38403), (729, 29869), (753, 28917), (1071, 20331), (1377, 15813), (1701, 12801), (1757, 12393), (2259, 9639), (3213, 6777), (4131, 5271), (4267, 5103)]