21620916

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13967}}^1$

素因数の和:14020

約数の個数: 36

約数和(自身を含む): 55927872

約数和(自身を除く): 34306956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13967, 27934, 41901, 55868, 83802, 125703, 167604, 251406, 502812, 600581, 1201162, 1801743, 2402324, 3603486, 5405229, 7206972, 10810458, 21620916]

約数ペア:

[(1, 21620916), (2, 10810458), (3, 7206972), (4, 5405229), (6, 3603486), (9, 2402324), (12, 1801743), (18, 1201162), (36, 600581), (43, 502812), (86, 251406), (129, 167604), (172, 125703), (258, 83802), (387, 55868), (516, 41901), (774, 27934), (1548, 13967)]