20778811179

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{3023}}^1$

素因数の和:3189

約数の個数: 96

約数和(自身を含む): 35742228480

約数和(自身を除く): 14963417301

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 107, 133, 147, 161, 321, 399, 437, 483, 749, 931, 1127, 1311, 2033, 2247, 2461, 2793, 3023, 3059, 3381, 5243, 6099, 7383, 9069, 9177, 14231, 15729, 17227, 21161, 21413, 42693, 46759, 51681, 57437, 63483, 64239, 69529, 99617, 120589, 140277, 148127, 172311, 208587, 298851, 323461, 327313, 361767, 402059, 444381, 486703, 970383, 981939, 1206177, 1321051, 1460109, 2264227, 2291191, 2814413, 3406921, 3963153, 6145759, 6792681, 6873573, 7439603, 8443239, 9247357, 10220763, 15849589, 18437277, 22318809, 27742071, 43020313, 47548767, 52077221, 64731499, 129060939, 141352457, 156231663, 194194497, 301142191, 364540547, 424057371, 903426573, 989467199, 1093621641, 2968401597, 6926270393, 20778811179]

約数ペア:

[(1, 20778811179), (3, 6926270393), (7, 2968401597), (19, 1093621641), (21, 989467199), (23, 903426573), (49, 424057371), (57, 364540547), (69, 301142191), (107, 194194497), (133, 156231663), (147, 141352457), (161, 129060939), (321, 64731499), (399, 52077221), (437, 47548767), (483, 43020313), (749, 27742071), (931, 22318809), (1127, 18437277), (1311, 15849589), (2033, 10220763), (2247, 9247357), (2461, 8443239), (2793, 7439603), (3023, 6873573), (3059, 6792681), (3381, 6145759), (5243, 3963153), (6099, 3406921), (7383, 2814413), (9069, 2291191), (9177, 2264227), (14231, 1460109), (15729, 1321051), (17227, 1206177), (21161, 981939), (21413, 970383), (42693, 486703), (46759, 444381), (51681, 402059), (57437, 361767), (63483, 327313), (64239, 323461), (69529, 298851), (99617, 208587), (120589, 172311), (140277, 148127)]