19885095

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1327}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 36636864

約数和(自身を除く): 16751769

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 333, 405, 555, 999, 1327, 1665, 2997, 3981, 4995, 6635, 11943, 14985, 19905, 35829, 49099, 59715, 107487, 147297, 179145, 245495, 441891, 537435, 736485, 1325673, 2209455, 3977019, 6628365, 19885095]

約数ペア:

[(1, 19885095), (3, 6628365), (5, 3977019), (9, 2209455), (15, 1325673), (27, 736485), (37, 537435), (45, 441891), (81, 245495), (111, 179145), (135, 147297), (185, 107487), (333, 59715), (405, 49099), (555, 35829), (999, 19905), (1327, 14985), (1665, 11943), (2997, 6635), (3981, 4995)]