20935131

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 34099200

約数和(自身を除く): 13164069

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 739, 1349, 1491, 2217, 4047, 5173, 9443, 14041, 15519, 28329, 42123, 52469, 98287, 157407, 294861, 367283, 996911, 1101849, 2990733, 6978377, 20935131]

約数ペア:

[(1, 20935131), (3, 6978377), (7, 2990733), (19, 1101849), (21, 996911), (57, 367283), (71, 294861), (133, 157407), (213, 98287), (399, 52469), (497, 42123), (739, 28329), (1349, 15519), (1491, 14041), (2217, 9443), (4047, 5173)]