19955356

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 35985600

約数和(自身を除く): 16030244

約数列:

[1, 2, 4, 41, 82, 164, 271, 449, 542, 898, 1084, 1796, 11111, 18409, 22222, 36818, 44444, 73636, 121679, 243358, 486716, 4988839, 9977678, 19955356]

約数ペア:

[(1, 19955356), (2, 9977678), (4, 4988839), (41, 486716), (82, 243358), (164, 121679), (271, 73636), (449, 44444), (542, 36818), (898, 22222), (1084, 18409), (1796, 11111)]