19891190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{967}}^1$

素因数の和:1013

約数の個数: 48

約数和(自身を含む): 41713056

約数和(自身を除く): 21821866

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 121, 170, 187, 242, 374, 605, 935, 967, 1210, 1870, 1934, 2057, 4114, 4835, 9670, 10285, 10637, 16439, 20570, 21274, 32878, 53185, 82195, 106370, 117007, 164390, 180829, 234014, 361658, 585035, 904145, 1170070, 1808290, 1989119, 3978238, 9945595, 19891190]

約数ペア:

[(1, 19891190), (2, 9945595), (5, 3978238), (10, 1989119), (11, 1808290), (17, 1170070), (22, 904145), (34, 585035), (55, 361658), (85, 234014), (110, 180829), (121, 164390), (170, 117007), (187, 106370), (242, 82195), (374, 53185), (605, 32878), (935, 21274), (967, 20570), (1210, 16439), (1870, 10637), (1934, 10285), (2057, 9670), (4114, 4835)]