20293539

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 32847360

約数和(自身を除く): 12553821

約数列:

[1, 3, 7, 19, 21, 57, 133, 181, 281, 399, 543, 843, 1267, 1967, 3439, 3801, 5339, 5901, 10317, 16017, 24073, 37373, 50861, 72219, 112119, 152583, 356027, 966359, 1068081, 2899077, 6764513, 20293539]

約数ペア:

[(1, 20293539), (3, 6764513), (7, 2899077), (19, 1068081), (21, 966359), (57, 356027), (133, 152583), (181, 112119), (281, 72219), (399, 50861), (543, 37373), (843, 24073), (1267, 16017), (1967, 10317), (3439, 5901), (3801, 5339)]