21271208

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12253}}^1$

素因数の和:12297

約数の個数: 32

約数和(自身を含む): 47055360

約数和(自身を除く): 25784152

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12253, 24506, 49012, 85771, 98024, 171542, 343084, 379843, 686168, 759686, 1519372, 2658901, 3038744, 5317802, 10635604, 21271208]

約数ペア:

[(1, 21271208), (2, 10635604), (4, 5317802), (7, 3038744), (8, 2658901), (14, 1519372), (28, 759686), (31, 686168), (56, 379843), (62, 343084), (124, 171542), (217, 98024), (248, 85771), (434, 49012), (868, 24506), (1736, 12253)]