21298383

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9067}}^1$

素因数の和:9108

約数の個数: 20

約数和(自身を含む): 32916840

約数和(自身を除く): 11618457

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9067, 27201, 81603, 244809, 262943, 734427, 788829, 2366487, 7099461, 21298383]

約数ペア:

[(1, 21298383), (3, 7099461), (9, 2366487), (27, 788829), (29, 734427), (81, 262943), (87, 244809), (261, 81603), (783, 27201), (2349, 9067)]