212980677

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18143}}^1$

素因数の和:18209

約数の個数: 32

約数和(自身を含む): 357654528

約数和(自身を除く): 144673851

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 11739, 18143, 54429, 127001, 235859, 381003, 707577, 780149, 1651013, 2340447, 4953039, 5461043, 10141937, 16383129, 30425811, 70993559, 212980677]

約数ペア:

[(1, 212980677), (3, 70993559), (7, 30425811), (13, 16383129), (21, 10141937), (39, 5461043), (43, 4953039), (91, 2340447), (129, 1651013), (273, 780149), (301, 707577), (559, 381003), (903, 235859), (1677, 127001), (3913, 54429), (11739, 18143)]