71786421

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 128044800

約数和(自身を除く): 56258379

約数列:

[1, 3, 7, 9, 21, 31, 49, 59, 63, 89, 93, 147, 177, 217, 267, 279, 413, 441, 531, 623, 651, 801, 1239, 1519, 1829, 1869, 1953, 2759, 2891, 3717, 4361, 4557, 5251, 5487, 5607, 8277, 8673, 12803, 13083, 13671, 15753, 16461, 19313, 24831, 26019, 36757, 38409, 39249, 47259, 57939, 89621, 110271, 115227, 135191, 162781, 173817, 257299, 268863, 330813, 405573, 488343, 771897, 806589, 1139467, 1216719, 1465029, 2315691, 3418401, 7976269, 10255203, 23928807, 71786421]

約数ペア:

[(1, 71786421), (3, 23928807), (7, 10255203), (9, 7976269), (21, 3418401), (31, 2315691), (49, 1465029), (59, 1216719), (63, 1139467), (89, 806589), (93, 771897), (147, 488343), (177, 405573), (217, 330813), (267, 268863), (279, 257299), (413, 173817), (441, 162781), (531, 135191), (623, 115227), (651, 110271), (801, 89621), (1239, 57939), (1519, 47259), (1829, 39249), (1869, 38409), (1953, 36757), (2759, 26019), (2891, 24831), (3717, 19313), (4361, 16461), (4557, 15753), (5251, 13671), (5487, 13083), (5607, 12803), (8277, 8673)]