28771210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221317}}^1$

素因数の和:221337

約数の個数: 16

約数和(自身を含む): 55772136

約数和(自身を除く): 27000926

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221317, 442634, 1106585, 2213170, 2877121, 5754242, 14385605, 28771210]

約数ペア:

[(1, 28771210), (2, 14385605), (5, 5754242), (10, 2877121), (13, 2213170), (26, 1106585), (65, 442634), (130, 221317)]