19628778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 25876374

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 113, 131, 221, 226, 262, 339, 393, 442, 663, 678, 786, 1326, 1469, 1703, 1921, 2227, 2938, 3406, 3842, 4407, 4454, 5109, 5763, 6681, 8814, 10218, 11526, 13362, 14803, 24973, 28951, 29606, 44409, 49946, 57902, 74919, 86853, 88818, 149838, 173706, 192439, 251651, 384878, 503302, 577317, 754953, 1154634, 1509906, 3271463, 6542926, 9814389, 19628778]

約数ペア:

[(1, 19628778), (2, 9814389), (3, 6542926), (6, 3271463), (13, 1509906), (17, 1154634), (26, 754953), (34, 577317), (39, 503302), (51, 384878), (78, 251651), (102, 192439), (113, 173706), (131, 149838), (221, 88818), (226, 86853), (262, 74919), (339, 57902), (393, 49946), (442, 44409), (663, 29606), (678, 28951), (786, 24973), (1326, 14803), (1469, 13362), (1703, 11526), (1921, 10218), (2227, 8814), (2938, 6681), (3406, 5763), (3842, 5109), (4407, 4454)]