18922059

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 64

約数和(自身を含む): 32686080

約数和(自身を除く): 13764021

約数列:

[1, 3, 9, 13, 27, 31, 37, 39, 47, 93, 111, 117, 141, 279, 333, 351, 403, 423, 481, 611, 837, 999, 1147, 1209, 1269, 1443, 1457, 1739, 1833, 3441, 3627, 4329, 4371, 5217, 5499, 10323, 10881, 12987, 13113, 14911, 15651, 16497, 18941, 22607, 30969, 39339, 44733, 46953, 53909, 56823, 67821, 134199, 161727, 170469, 203463, 402597, 485181, 511407, 610389, 700817, 1455543, 2102451, 6307353, 18922059]

約数ペア:

[(1, 18922059), (3, 6307353), (9, 2102451), (13, 1455543), (27, 700817), (31, 610389), (37, 511407), (39, 485181), (47, 402597), (93, 203463), (111, 170469), (117, 161727), (141, 134199), (279, 67821), (333, 56823), (351, 53909), (403, 46953), (423, 44733), (481, 39339), (611, 30969), (837, 22607), (999, 18941), (1147, 16497), (1209, 15651), (1269, 14911), (1443, 13113), (1457, 12987), (1739, 10881), (1833, 10323), (3441, 5499), (3627, 5217), (4329, 4371)]