21983451

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{22273}}^1$

素因数の和:22330

約数の個数: 16

約数和(自身を含む): 34212864

約数和(自身を除く): 12229413

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 22273, 66819, 155911, 467733, 1046831, 3140493, 7327817, 21983451]

約数ペア:

[(1, 21983451), (3, 7327817), (7, 3140493), (21, 1046831), (47, 467733), (141, 155911), (329, 66819), (987, 22273)]