19910343376

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{21751}}^1$

素因数の和:22520

約数の個数: 80

約数和(自身を含む): 48162060288

約数和(自身を除く): 28251716912

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 743, 1232, 1486, 2972, 5201, 5944, 8173, 10402, 11888, 16346, 20804, 21751, 32692, 41608, 43502, 57211, 65384, 83216, 87004, 114422, 130768, 152257, 174008, 228844, 239261, 304514, 348016, 457688, 478522, 609028, 915376, 957044, 1218056, 1674827, 1914088, 2436112, 3349654, 3828176, 6699308, 13398616, 16160993, 26797232, 32321986, 64643972, 113126951, 129287944, 177770923, 226253902, 258575888, 355541846, 452507804, 711083692, 905015608, 1244396461, 1422167384, 1810031216, 2488792922, 2844334768, 4977585844, 9955171688, 19910343376]

約数ペア:

[(1, 19910343376), (2, 9955171688), (4, 4977585844), (7, 2844334768), (8, 2488792922), (11, 1810031216), (14, 1422167384), (16, 1244396461), (22, 905015608), (28, 711083692), (44, 452507804), (56, 355541846), (77, 258575888), (88, 226253902), (112, 177770923), (154, 129287944), (176, 113126951), (308, 64643972), (616, 32321986), (743, 26797232), (1232, 16160993), (1486, 13398616), (2972, 6699308), (5201, 3828176), (5944, 3349654), (8173, 2436112), (10402, 1914088), (11888, 1674827), (16346, 1218056), (20804, 957044), (21751, 915376), (32692, 609028), (41608, 478522), (43502, 457688), (57211, 348016), (65384, 304514), (83216, 239261), (87004, 228844), (114422, 174008), (130768, 152257)]