19854315

素因数分解:

$3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:455

約数の個数: 56

約数和(自身を含む): 38561040

約数和(自身を除く): 18706725

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 419, 585, 729, 1053, 1215, 1257, 1755, 2095, 3159, 3645, 3771, 5265, 5447, 6285, 9477, 11313, 15795, 16341, 18855, 27235, 33939, 47385, 49023, 56565, 81705, 101817, 147069, 169695, 245115, 305451, 441207, 509085, 735345, 1323621, 1527255, 2206035, 3970863, 6618105, 19854315]

約数ペア:

[(1, 19854315), (3, 6618105), (5, 3970863), (9, 2206035), (13, 1527255), (15, 1323621), (27, 735345), (39, 509085), (45, 441207), (65, 305451), (81, 245115), (117, 169695), (135, 147069), (195, 101817), (243, 81705), (351, 56565), (405, 49023), (419, 47385), (585, 33939), (729, 27235), (1053, 18855), (1215, 16341), (1257, 15795), (1755, 11313), (2095, 9477), (3159, 6285), (3645, 5447), (3771, 5265)]