21147258

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{13931}}^1$

素因数の和:13970

約数の個数: 32

約数和(自身を含む): 48148992

約数和(自身を除く): 27001734

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 759, 1518, 13931, 27862, 41793, 83586, 153241, 306482, 320413, 459723, 640826, 919446, 961239, 1922478, 3524543, 7049086, 10573629, 21147258]

約数ペア:

[(1, 21147258), (2, 10573629), (3, 7049086), (6, 3524543), (11, 1922478), (22, 961239), (23, 919446), (33, 640826), (46, 459723), (66, 320413), (69, 306482), (138, 153241), (253, 83586), (506, 41793), (759, 27862), (1518, 13931)]