18642819

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 28537600

約数和(自身を除く): 9894781

約数列:

[1, 3, 13, 19, 39, 57, 139, 181, 247, 417, 543, 741, 1807, 2353, 2641, 3439, 5421, 7059, 7923, 10317, 25159, 34333, 44707, 75477, 102999, 134121, 327067, 478021, 981201, 1434063, 6214273, 18642819]

約数ペア:

[(1, 18642819), (3, 6214273), (13, 1434063), (19, 981201), (39, 478021), (57, 327067), (139, 134121), (181, 102999), (247, 75477), (417, 44707), (543, 34333), (741, 25159), (1807, 10317), (2353, 7923), (2641, 7059), (3439, 5421)]