21214782

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{7507}}^1$

素因数の和:7672

約数の個数: 24

約数和(自身を含む): 46264296

約数和(自身を除く): 25049514

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 7507, 15014, 22521, 45042, 67563, 135126, 1178599, 2357198, 3535797, 7071594, 10607391, 21214782]

約数ペア:

[(1, 21214782), (2, 10607391), (3, 7071594), (6, 3535797), (9, 2357198), (18, 1178599), (157, 135126), (314, 67563), (471, 45042), (942, 22521), (1413, 15014), (2826, 7507)]