18984537

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:196

約数の個数: 60

約数和(自身を含む): 33795300

約数和(自身を除く): 14810763

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 121, 143, 149, 297, 351, 363, 429, 447, 891, 1053, 1089, 1287, 1341, 1573, 1639, 1937, 3267, 3861, 4023, 4719, 4917, 5811, 9801, 11583, 12069, 14157, 14751, 17433, 18029, 21307, 42471, 44253, 52299, 54087, 63921, 127413, 132759, 156897, 162261, 191763, 234377, 486783, 575289, 703131, 1460349, 1725867, 2109393, 6328179, 18984537]

約数ペア:

[(1, 18984537), (3, 6328179), (9, 2109393), (11, 1725867), (13, 1460349), (27, 703131), (33, 575289), (39, 486783), (81, 234377), (99, 191763), (117, 162261), (121, 156897), (143, 132759), (149, 127413), (297, 63921), (351, 54087), (363, 52299), (429, 44253), (447, 42471), (891, 21307), (1053, 18029), (1089, 17433), (1287, 14751), (1341, 14157), (1573, 12069), (1639, 11583), (1937, 9801), (3267, 5811), (3861, 4917), (4023, 4719)]