19792465

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 29963520

約数和(自身を除く): 10171055

約数列:

[1, 5, 7, 11, 35, 55, 77, 101, 385, 505, 509, 707, 1111, 2545, 3535, 3563, 5555, 5599, 7777, 17815, 27995, 38885, 39193, 51409, 195965, 257045, 359863, 565499, 1799315, 2827495, 3958493, 19792465]

約数ペア:

[(1, 19792465), (5, 3958493), (7, 2827495), (11, 1799315), (35, 565499), (55, 359863), (77, 257045), (101, 195965), (385, 51409), (505, 39193), (509, 38885), (707, 27995), (1111, 17815), (2545, 7777), (3535, 5599), (3563, 5555)]