19264791

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{593}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 34128864

約数和(自身を除く): 14864073

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 221, 273, 357, 593, 637, 663, 833, 1547, 1779, 1911, 2499, 4151, 4641, 7709, 10081, 10829, 12453, 23127, 29057, 30243, 32487, 53963, 70567, 87171, 131053, 161889, 211701, 377741, 393159, 493969, 917371, 1133223, 1481907, 2752113, 6421597, 19264791]

約数ペア:

[(1, 19264791), (3, 6421597), (7, 2752113), (13, 1481907), (17, 1133223), (21, 917371), (39, 493969), (49, 393159), (51, 377741), (91, 211701), (119, 161889), (147, 131053), (221, 87171), (273, 70567), (357, 53963), (593, 32487), (637, 30243), (663, 29057), (833, 23127), (1547, 12453), (1779, 10829), (1911, 10081), (2499, 7709), (4151, 4641)]