1971207

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{467}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 3309696

約数和(自身を除く): 1338489

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 467, 469, 603, 1401, 1407, 3269, 4203, 4221, 9807, 29421, 31289, 93867, 219023, 281601, 657069, 1971207]

約数ペア:

[(1, 1971207), (3, 657069), (7, 281601), (9, 219023), (21, 93867), (63, 31289), (67, 29421), (201, 9807), (467, 4221), (469, 4203), (603, 3269), (1401, 1407)]