18913804

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{571}}^1$

素因数の和:615

約数の個数: 54

約数和(自身を含む): 41765724

約数和(自身を除く): 22851920

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 571, 637, 676, 1142, 1183, 1274, 2284, 2366, 2548, 3997, 4732, 7423, 7994, 8281, 14846, 15988, 16562, 27979, 29692, 33124, 51961, 55958, 96499, 103922, 111916, 192998, 207844, 363727, 385996, 675493, 727454, 1350986, 1454908, 2701972, 4728451, 9456902, 18913804]

約数ペア:

[(1, 18913804), (2, 9456902), (4, 4728451), (7, 2701972), (13, 1454908), (14, 1350986), (26, 727454), (28, 675493), (49, 385996), (52, 363727), (91, 207844), (98, 192998), (169, 111916), (182, 103922), (196, 96499), (338, 55958), (364, 51961), (571, 33124), (637, 29692), (676, 27979), (1142, 16562), (1183, 15988), (1274, 14846), (2284, 8281), (2366, 7994), (2548, 7423), (3997, 4732)]