21938665

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{27253}}^1$

素因数の和:27288

約数の個数: 16

約数和(自身を含む): 31396608

約数和(自身を除く): 9457943

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 27253, 136265, 190771, 626819, 953855, 3134095, 4387733, 21938665]

約数ペア:

[(1, 21938665), (5, 4387733), (7, 3134095), (23, 953855), (35, 626819), (115, 190771), (161, 136265), (805, 27253)]