21092834

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 39004416

約数和(自身を除く): 17911582

約数列:

[1, 2, 7, 14, 31, 49, 53, 62, 98, 106, 131, 217, 262, 371, 434, 742, 917, 1519, 1643, 1834, 2597, 3038, 3286, 4061, 5194, 6419, 6943, 8122, 11501, 12838, 13886, 23002, 28427, 48601, 56854, 80507, 97202, 161014, 198989, 215233, 340207, 397978, 430466, 680414, 1506631, 3013262, 10546417, 21092834]

約数ペア:

[(1, 21092834), (2, 10546417), (7, 3013262), (14, 1506631), (31, 680414), (49, 430466), (53, 397978), (62, 340207), (98, 215233), (106, 198989), (131, 161014), (217, 97202), (262, 80507), (371, 56854), (434, 48601), (742, 28427), (917, 23002), (1519, 13886), (1643, 12838), (1834, 11501), (2597, 8122), (3038, 6943), (3286, 6419), (4061, 5194)]