18090831

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 29025920

約数和(自身を除く): 10935089

約数列:

[1, 3, 11, 19, 33, 43, 57, 61, 121, 129, 183, 209, 363, 473, 627, 671, 817, 1159, 1419, 2013, 2299, 2451, 2623, 3477, 5203, 6897, 7381, 7869, 8987, 12749, 15609, 22143, 26961, 28853, 38247, 49837, 86559, 98857, 140239, 149511, 296571, 317383, 420717, 548207, 952149, 1644621, 6030277, 18090831]

約数ペア:

[(1, 18090831), (3, 6030277), (11, 1644621), (19, 952149), (33, 548207), (43, 420717), (57, 317383), (61, 296571), (121, 149511), (129, 140239), (183, 98857), (209, 86559), (363, 49837), (473, 38247), (627, 28853), (671, 26961), (817, 22143), (1159, 15609), (1419, 12749), (2013, 8987), (2299, 7869), (2451, 7381), (2623, 6897), (3477, 5203)]