21691072

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:114

約数の個数: 84

約数和(自身を含む): 49556416

約数和(自身を除く): 27865344

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 31, 32, 52, 58, 62, 64, 104, 116, 124, 208, 232, 248, 377, 403, 416, 464, 496, 754, 806, 832, 841, 899, 928, 992, 1508, 1612, 1682, 1798, 1856, 1984, 3016, 3224, 3364, 3596, 6032, 6448, 6728, 7192, 10933, 11687, 12064, 12896, 13456, 14384, 21866, 23374, 24128, 25792, 26071, 26912, 28768, 43732, 46748, 52142, 53824, 57536, 87464, 93496, 104284, 174928, 186992, 208568, 338923, 349856, 373984, 417136, 677846, 699712, 747968, 834272, 1355692, 1668544, 2711384, 5422768, 10845536, 21691072]

約数ペア:

[(1, 21691072), (2, 10845536), (4, 5422768), (8, 2711384), (13, 1668544), (16, 1355692), (26, 834272), (29, 747968), (31, 699712), (32, 677846), (52, 417136), (58, 373984), (62, 349856), (64, 338923), (104, 208568), (116, 186992), (124, 174928), (208, 104284), (232, 93496), (248, 87464), (377, 57536), (403, 53824), (416, 52142), (464, 46748), (496, 43732), (754, 28768), (806, 26912), (832, 26071), (841, 25792), (899, 24128), (928, 23374), (992, 21866), (1508, 14384), (1612, 13456), (1682, 12896), (1798, 12064), (1856, 11687), (1984, 10933), (3016, 7192), (3224, 6728), (3364, 6448), (3596, 6032)]