21520746

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{91969}}^1$

素因数の和:91990

約数の個数: 24

約数和(自身を含む): 50215620

約数和(自身を除く): 28694874

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 91969, 183938, 275907, 551814, 827721, 1195597, 1655442, 2391194, 3586791, 7173582, 10760373, 21520746]

約数ペア:

[(1, 21520746), (2, 10760373), (3, 7173582), (6, 3586791), (9, 2391194), (13, 1655442), (18, 1195597), (26, 827721), (39, 551814), (78, 275907), (117, 183938), (234, 91969)]