19426911

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 12022689

約数列:

[1, 3, 7, 19, 21, 57, 133, 181, 269, 399, 543, 807, 1267, 1883, 3439, 3801, 5111, 5649, 10317, 15333, 24073, 35777, 48689, 72219, 107331, 146067, 340823, 925091, 1022469, 2775273, 6475637, 19426911]

約数ペア:

[(1, 19426911), (3, 6475637), (7, 2775273), (19, 1022469), (21, 925091), (57, 340823), (133, 146067), (181, 107331), (269, 72219), (399, 48689), (543, 35777), (807, 24073), (1267, 15333), (1883, 10317), (3439, 5649), (3801, 5111)]