21745425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22303}}^1$

素因数の和:22329

約数の個数: 24

約数和(自身を含む): 38719744

約数和(自身を除く): 16974319

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 22303, 66909, 111515, 289939, 334545, 557575, 869817, 1449695, 1672725, 4349085, 7248475, 21745425]

約数ペア:

[(1, 21745425), (3, 7248475), (5, 4349085), (13, 1672725), (15, 1449695), (25, 869817), (39, 557575), (65, 334545), (75, 289939), (195, 111515), (325, 66909), (975, 22303)]