21551177984

素因数分解:

$2^8\times 7^1\times {\mathrm{17}}^1\times {\mathrm{707431}}^1$

素因数の和:707471

約数の個数: 72

約数和(自身を含む): 52055676288

約数和(自身を除く): 30504498304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 256, 272, 448, 476, 544, 896, 952, 1088, 1792, 1904, 2176, 3808, 4352, 7616, 15232, 30464, 707431, 1414862, 2829724, 4952017, 5659448, 9904034, 11318896, 12026327, 19808068, 22637792, 24052654, 39616136, 45275584, 48105308, 79232272, 84184289, 90551168, 96210616, 158464544, 168368578, 181102336, 192421232, 316929088, 336737156, 384842464, 633858176, 673474312, 769684928, 1267716352, 1346948624, 1539369856, 2693897248, 3078739712, 5387794496, 10775588992, 21551177984]

約数ペア:

[(1, 21551177984), (2, 10775588992), (4, 5387794496), (7, 3078739712), (8, 2693897248), (14, 1539369856), (16, 1346948624), (17, 1267716352), (28, 769684928), (32, 673474312), (34, 633858176), (56, 384842464), (64, 336737156), (68, 316929088), (112, 192421232), (119, 181102336), (128, 168368578), (136, 158464544), (224, 96210616), (238, 90551168), (256, 84184289), (272, 79232272), (448, 48105308), (476, 45275584), (544, 39616136), (896, 24052654), (952, 22637792), (1088, 19808068), (1792, 12026327), (1904, 11318896), (2176, 9904034), (3808, 5659448), (4352, 4952017), (7616, 2829724), (15232, 1414862), (30464, 707431)]