19793655

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2027}}^1$

素因数の和:2076

約数の個数: 48

約数和(自身を含む): 40495104

約数和(自身を除く): 20701449

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2027, 3255, 6081, 9765, 10135, 14189, 18243, 30405, 42567, 62837, 70945, 91215, 127701, 188511, 212835, 314185, 439859, 565533, 638505, 942555, 1319577, 2199295, 2827665, 3958731, 6597885, 19793655]

約数ペア:

[(1, 19793655), (3, 6597885), (5, 3958731), (7, 2827665), (9, 2199295), (15, 1319577), (21, 942555), (31, 638505), (35, 565533), (45, 439859), (63, 314185), (93, 212835), (105, 188511), (155, 127701), (217, 91215), (279, 70945), (315, 62837), (465, 42567), (651, 30405), (1085, 18243), (1395, 14189), (1953, 10135), (2027, 9765), (3255, 6081)]