21400893

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{983}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 32235840

約数和(自身を除く): 10834947

約数列:

[1, 3, 9, 41, 59, 123, 177, 369, 531, 983, 2419, 2949, 7257, 8847, 21771, 40303, 57997, 120909, 173991, 362727, 521973, 2377877, 7133631, 21400893]

約数ペア:

[(1, 21400893), (3, 7133631), (9, 2377877), (41, 521973), (59, 362727), (123, 173991), (177, 120909), (369, 57997), (531, 40303), (983, 21771), (2419, 8847), (2949, 7257)]