21293454

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:745

約数の個数: 64

約数和(自身を含む): 53383680

約数和(自身を除く): 32090226

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 59, 78, 91, 118, 177, 182, 273, 354, 413, 546, 661, 767, 826, 1239, 1322, 1534, 1983, 2301, 2478, 3966, 4602, 4627, 5369, 8593, 9254, 10738, 13881, 16107, 17186, 25779, 27762, 32214, 38999, 51558, 60151, 77998, 116997, 120302, 180453, 233994, 272993, 360906, 506987, 545986, 818979, 1013974, 1520961, 1637958, 3041922, 3548909, 7097818, 10646727, 21293454]

約数ペア:

[(1, 21293454), (2, 10646727), (3, 7097818), (6, 3548909), (7, 3041922), (13, 1637958), (14, 1520961), (21, 1013974), (26, 818979), (39, 545986), (42, 506987), (59, 360906), (78, 272993), (91, 233994), (118, 180453), (177, 120302), (182, 116997), (273, 77998), (354, 60151), (413, 51558), (546, 38999), (661, 32214), (767, 27762), (826, 25779), (1239, 17186), (1322, 16107), (1534, 13881), (1983, 10738), (2301, 9254), (2478, 8593), (3966, 5369), (4602, 4627)]