21309408

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{3217}}^1$

素因数の和:3256

約数の個数: 72

約数和(自身を含む): 63253008

約数和(自身を除く): 41943600

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 138, 144, 184, 207, 276, 288, 368, 414, 552, 736, 828, 1104, 1656, 2208, 3217, 3312, 6434, 6624, 9651, 12868, 19302, 25736, 28953, 38604, 51472, 57906, 73991, 77208, 102944, 115812, 147982, 154416, 221973, 231624, 295964, 308832, 443946, 463248, 591928, 665919, 887892, 926496, 1183856, 1331838, 1775784, 2367712, 2663676, 3551568, 5327352, 7103136, 10654704, 21309408]

約数ペア:

[(1, 21309408), (2, 10654704), (3, 7103136), (4, 5327352), (6, 3551568), (8, 2663676), (9, 2367712), (12, 1775784), (16, 1331838), (18, 1183856), (23, 926496), (24, 887892), (32, 665919), (36, 591928), (46, 463248), (48, 443946), (69, 308832), (72, 295964), (92, 231624), (96, 221973), (138, 154416), (144, 147982), (184, 115812), (207, 102944), (276, 77208), (288, 73991), (368, 57906), (414, 51472), (552, 38604), (736, 28953), (828, 25736), (1104, 19302), (1656, 12868), (2208, 9651), (3217, 6624), (3312, 6434)]