21294036

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2777}}^1$

素因数の和:2861

約数の個数: 48

約数和(自身を含む): 56004480

約数和(自身を除く): 34710444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2777, 3834, 5554, 7668, 8331, 11108, 16662, 24993, 33324, 49986, 74979, 99972, 149958, 197167, 299916, 394334, 591501, 788668, 1183002, 1774503, 2366004, 3549006, 5323509, 7098012, 10647018, 21294036]

約数ペア:

[(1, 21294036), (2, 10647018), (3, 7098012), (4, 5323509), (6, 3549006), (9, 2366004), (12, 1774503), (18, 1183002), (27, 788668), (36, 591501), (54, 394334), (71, 299916), (108, 197167), (142, 149958), (213, 99972), (284, 74979), (426, 49986), (639, 33324), (852, 24993), (1278, 16662), (1917, 11108), (2556, 8331), (2777, 7668), (3834, 5554)]