21116476

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 38067120

約数和(自身を除く): 16950644

約数列:

[1, 2, 4, 41, 82, 164, 331, 389, 662, 778, 1324, 1556, 13571, 15949, 27142, 31898, 54284, 63796, 128759, 257518, 515036, 5279119, 10558238, 21116476]

約数ペア:

[(1, 21116476), (2, 10558238), (4, 5279119), (41, 515036), (82, 257518), (164, 128759), (331, 63796), (389, 54284), (662, 31898), (778, 27142), (1324, 15949), (1556, 13571)]