21157416

素因数分解:

$2^3\times 3^3\times 7^2\times {\mathrm{1999}}^1$

素因数の和:2028

約数の個数: 96

約数和(自身を含む): 68400000

約数和(自身を除く): 47242584

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 84, 98, 108, 126, 147, 168, 189, 196, 216, 252, 294, 378, 392, 441, 504, 588, 756, 882, 1176, 1323, 1512, 1764, 1999, 2646, 3528, 3998, 5292, 5997, 7996, 10584, 11994, 13993, 15992, 17991, 23988, 27986, 35982, 41979, 47976, 53973, 55972, 71964, 83958, 97951, 107946, 111944, 125937, 143928, 167916, 195902, 215892, 251874, 293853, 335832, 377811, 391804, 431784, 503748, 587706, 755622, 783608, 881559, 1007496, 1175412, 1511244, 1763118, 2350824, 2644677, 3022488, 3526236, 5289354, 7052472, 10578708, 21157416]

約数ペア:

[(1, 21157416), (2, 10578708), (3, 7052472), (4, 5289354), (6, 3526236), (7, 3022488), (8, 2644677), (9, 2350824), (12, 1763118), (14, 1511244), (18, 1175412), (21, 1007496), (24, 881559), (27, 783608), (28, 755622), (36, 587706), (42, 503748), (49, 431784), (54, 391804), (56, 377811), (63, 335832), (72, 293853), (84, 251874), (98, 215892), (108, 195902), (126, 167916), (147, 143928), (168, 125937), (189, 111944), (196, 107946), (216, 97951), (252, 83958), (294, 71964), (378, 55972), (392, 53973), (441, 47976), (504, 41979), (588, 35982), (756, 27986), (882, 23988), (1176, 17991), (1323, 15992), (1512, 13993), (1764, 11994), (1999, 10584), (2646, 7996), (3528, 5997), (3998, 5292)]