21629972

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{653}}^1$

素因数の和:697

約数の個数: 54

約数和(自身を含む): 47753118

約数和(自身を除く): 26123146

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 637, 653, 676, 1183, 1274, 1306, 2366, 2548, 2612, 4571, 4732, 8281, 8489, 9142, 16562, 16978, 18284, 31997, 33124, 33956, 59423, 63994, 110357, 118846, 127988, 220714, 237692, 415961, 441428, 772499, 831922, 1544998, 1663844, 3089996, 5407493, 10814986, 21629972]

約数ペア:

[(1, 21629972), (2, 10814986), (4, 5407493), (7, 3089996), (13, 1663844), (14, 1544998), (26, 831922), (28, 772499), (49, 441428), (52, 415961), (91, 237692), (98, 220714), (169, 127988), (182, 118846), (196, 110357), (338, 63994), (364, 59423), (637, 33956), (653, 33124), (676, 31997), (1183, 18284), (1274, 16978), (1306, 16562), (2366, 9142), (2548, 8489), (2612, 8281), (4571, 4732)]