21603946

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 41952384

約数和(自身を除く): 20348438

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 169, 182, 299, 322, 338, 397, 598, 794, 1183, 2093, 2366, 2779, 3887, 4186, 5161, 5558, 7774, 9131, 10322, 18262, 27209, 36127, 54418, 63917, 67093, 72254, 118703, 127834, 134186, 237406, 469651, 830921, 939302, 1543139, 1661842, 3086278, 10801973, 21603946]

約数ペア:

[(1, 21603946), (2, 10801973), (7, 3086278), (13, 1661842), (14, 1543139), (23, 939302), (26, 830921), (46, 469651), (91, 237406), (161, 134186), (169, 127834), (182, 118703), (299, 72254), (322, 67093), (338, 63917), (397, 54418), (598, 36127), (794, 27209), (1183, 18262), (2093, 10322), (2366, 9131), (2779, 7774), (3887, 5558), (4186, 5161)]