21390050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{38891}}^1$

素因数の和:38914

約数の個数: 24

約数和(自身を含む): 43403472

約数和(自身を除く): 22013422

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 38891, 77782, 194455, 388910, 427801, 855602, 972275, 1944550, 2139005, 4278010, 10695025, 21390050]

約数ペア:

[(1, 21390050), (2, 10695025), (5, 4278010), (10, 2139005), (11, 1944550), (22, 972275), (25, 855602), (50, 427801), (55, 388910), (110, 194455), (275, 77782), (550, 38891)]