21271161604

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{281}}^1\times {\mathrm{22343}}^1$

素因数の和:22657

約数の個数: 72

約数和(自身を含む): 46929907584

約数和(自身を除く): 25658745980

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 281, 308, 484, 562, 847, 1124, 1694, 1967, 3091, 3388, 3934, 6182, 7868, 12364, 21637, 22343, 34001, 43274, 44686, 68002, 86548, 89372, 136004, 156401, 238007, 245773, 312802, 476014, 491546, 625604, 952028, 983092, 1720411, 2703503, 3440822, 5407006, 6278383, 6881644, 10814012, 12556766, 18924521, 25113532, 37849042, 43948681, 69062213, 75698084, 87897362, 138124426, 175794724, 276248852, 483435491, 759684343, 966870982, 1519368686, 1933741964, 3038737372, 5317790401, 10635580802, 21271161604]

約数ペア:

[(1, 21271161604), (2, 10635580802), (4, 5317790401), (7, 3038737372), (11, 1933741964), (14, 1519368686), (22, 966870982), (28, 759684343), (44, 483435491), (77, 276248852), (121, 175794724), (154, 138124426), (242, 87897362), (281, 75698084), (308, 69062213), (484, 43948681), (562, 37849042), (847, 25113532), (1124, 18924521), (1694, 12556766), (1967, 10814012), (3091, 6881644), (3388, 6278383), (3934, 5407006), (6182, 3440822), (7868, 2703503), (12364, 1720411), (21637, 983092), (22343, 952028), (34001, 625604), (43274, 491546), (44686, 476014), (68002, 312802), (86548, 245773), (89372, 238007), (136004, 156401)]