21969731

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{739}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 26142720

約数和(自身を除く): 4172989

約数列:

[1, 7, 31, 137, 217, 739, 959, 4247, 5173, 22909, 29729, 101243, 160363, 708701, 3138533, 21969731]

約数ペア:

[(1, 21969731), (7, 3138533), (31, 708701), (137, 160363), (217, 101243), (739, 29729), (959, 22909), (4247, 5173)]