19815285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{653}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 38549376

約数和(自身を除く): 18734091

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 289, 357, 595, 653, 867, 1445, 1785, 1959, 2023, 3265, 4335, 4571, 6069, 9795, 10115, 11101, 13713, 22855, 30345, 33303, 55505, 68565, 77707, 166515, 188717, 233121, 388535, 566151, 943585, 1165605, 1321019, 2830755, 3963057, 6605095, 19815285]

約数ペア:

[(1, 19815285), (3, 6605095), (5, 3963057), (7, 2830755), (15, 1321019), (17, 1165605), (21, 943585), (35, 566151), (51, 388535), (85, 233121), (105, 188717), (119, 166515), (255, 77707), (289, 68565), (357, 55505), (595, 33303), (653, 30345), (867, 22855), (1445, 13713), (1785, 11101), (1959, 10115), (2023, 9795), (3265, 6069), (4335, 4571)]