20161257193

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 26265747456

約数和(自身を除く): 6104490263

約数列:

[1, 7, 11, 47, 61, 77, 271, 329, 337, 427, 517, 671, 1897, 2359, 2867, 2981, 3619, 3707, 4697, 12737, 15839, 16531, 20069, 20557, 20867, 25949, 31537, 89159, 91327, 110873, 115717, 140107, 143899, 174229, 181841, 220759, 226127, 639289, 776957, 966179, 980749, 1004597, 1219603, 1272887, 1582889, 4292369, 5438699, 5570947, 6763253, 7032179, 8546527, 10627969, 30046583, 38996629, 47216059, 59825689, 61280417, 74395783, 261834509, 330512413, 428962919, 1832841563, 2880179599, 20161257193]

約数ペア:

[(1, 20161257193), (7, 2880179599), (11, 1832841563), (47, 428962919), (61, 330512413), (77, 261834509), (271, 74395783), (329, 61280417), (337, 59825689), (427, 47216059), (517, 38996629), (671, 30046583), (1897, 10627969), (2359, 8546527), (2867, 7032179), (2981, 6763253), (3619, 5570947), (3707, 5438699), (4697, 4292369), (12737, 1582889), (15839, 1272887), (16531, 1219603), (20069, 1004597), (20557, 980749), (20867, 966179), (25949, 776957), (31537, 639289), (89159, 226127), (91327, 220759), (110873, 181841), (115717, 174229), (140107, 143899)]