18955935

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 16424865

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 255, 349, 355, 639, 765, 1047, 1065, 1207, 1745, 3141, 3195, 3621, 5235, 5933, 6035, 10863, 15705, 17799, 18105, 24779, 29665, 53397, 54315, 74337, 88995, 123895, 223011, 266985, 371685, 421243, 1115055, 1263729, 2106215, 3791187, 6318645, 18955935]

約数ペア:

[(1, 18955935), (3, 6318645), (5, 3791187), (9, 2106215), (15, 1263729), (17, 1115055), (45, 421243), (51, 371685), (71, 266985), (85, 223011), (153, 123895), (213, 88995), (255, 74337), (349, 54315), (355, 53397), (639, 29665), (765, 24779), (1047, 18105), (1065, 17799), (1207, 15705), (1745, 10863), (3141, 6035), (3195, 5933), (3621, 5235)]