17982531

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 31799040

約数和(自身を除く): 13816509

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 83, 133, 171, 181, 249, 399, 543, 581, 747, 1197, 1267, 1577, 1629, 1743, 3439, 3801, 4731, 5229, 10317, 11039, 11403, 14193, 15023, 24073, 30951, 33117, 45069, 72219, 99351, 105161, 135207, 216657, 285437, 315483, 856311, 946449, 1998059, 2568933, 5994177, 17982531]

約数ペア:

[(1, 17982531), (3, 5994177), (7, 2568933), (9, 1998059), (19, 946449), (21, 856311), (57, 315483), (63, 285437), (83, 216657), (133, 135207), (171, 105161), (181, 99351), (249, 72219), (399, 45069), (543, 33117), (581, 30951), (747, 24073), (1197, 15023), (1267, 14193), (1577, 11403), (1629, 11039), (1743, 10317), (3439, 5229), (3801, 4731)]