21708078

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1571}}^1$

素因数の和:1637

約数の個数: 48

約数和(自身を含む): 51611904

約数和(自身を除く): 29903826

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 49, 94, 98, 141, 147, 282, 294, 329, 658, 987, 1571, 1974, 2303, 3142, 4606, 4713, 6909, 9426, 10997, 13818, 21994, 32991, 65982, 73837, 76979, 147674, 153958, 221511, 230937, 443022, 461874, 516859, 1033718, 1550577, 3101154, 3618013, 7236026, 10854039, 21708078]

約数ペア:

[(1, 21708078), (2, 10854039), (3, 7236026), (6, 3618013), (7, 3101154), (14, 1550577), (21, 1033718), (42, 516859), (47, 461874), (49, 443022), (94, 230937), (98, 221511), (141, 153958), (147, 147674), (282, 76979), (294, 73837), (329, 65982), (658, 32991), (987, 21994), (1571, 13818), (1974, 10997), (2303, 9426), (3142, 6909), (4606, 4713)]