20825714

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 20978062

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 53, 91, 106, 119, 127, 182, 221, 238, 254, 371, 442, 689, 742, 889, 901, 1378, 1547, 1651, 1778, 1802, 2159, 3094, 3302, 4318, 4823, 6307, 6731, 9646, 11557, 11713, 12614, 13462, 15113, 23114, 23426, 28067, 30226, 47117, 56134, 81991, 87503, 94234, 114427, 163982, 175006, 196469, 228854, 392938, 612521, 800989, 1225042, 1487551, 1601978, 2975102, 10412857, 20825714]

約数ペア:

[(1, 20825714), (2, 10412857), (7, 2975102), (13, 1601978), (14, 1487551), (17, 1225042), (26, 800989), (34, 612521), (53, 392938), (91, 228854), (106, 196469), (119, 175006), (127, 163982), (182, 114427), (221, 94234), (238, 87503), (254, 81991), (371, 56134), (442, 47117), (689, 30226), (742, 28067), (889, 23426), (901, 23114), (1378, 15113), (1547, 13462), (1651, 12614), (1778, 11713), (1802, 11557), (2159, 9646), (3094, 6731), (3302, 6307), (4318, 4823)]