31391556

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 85954176

約数和(自身を除く): 54562620

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 197, 271, 294, 394, 542, 588, 591, 788, 813, 1084, 1182, 1379, 1626, 1897, 2364, 2758, 3252, 3794, 4137, 5516, 5691, 7588, 8274, 9653, 11382, 13279, 16548, 19306, 22764, 26558, 28959, 38612, 39837, 53116, 53387, 57918, 79674, 106774, 115836, 159348, 160161, 213548, 320322, 373709, 640644, 747418, 1121127, 1494836, 2242254, 2615963, 4484508, 5231926, 7847889, 10463852, 15695778, 31391556]

約数ペア:

[(1, 31391556), (2, 15695778), (3, 10463852), (4, 7847889), (6, 5231926), (7, 4484508), (12, 2615963), (14, 2242254), (21, 1494836), (28, 1121127), (42, 747418), (49, 640644), (84, 373709), (98, 320322), (147, 213548), (196, 160161), (197, 159348), (271, 115836), (294, 106774), (394, 79674), (542, 57918), (588, 53387), (591, 53116), (788, 39837), (813, 38612), (1084, 28959), (1182, 26558), (1379, 22764), (1626, 19306), (1897, 16548), (2364, 13279), (2758, 11382), (3252, 9653), (3794, 8274), (4137, 7588), (5516, 5691)]