90905913

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1459}}^1$

素因数の和:1538

約数の個数: 48

約数和(自身を含む): 160343040

約数和(自身を除く): 69437127

約数列:

[1, 3, 7, 9, 21, 23, 43, 63, 69, 129, 161, 207, 301, 387, 483, 903, 989, 1449, 1459, 2709, 2967, 4377, 6923, 8901, 10213, 13131, 20769, 30639, 33557, 62307, 62737, 91917, 100671, 188211, 234899, 302013, 439159, 564633, 704697, 1317477, 1442951, 2114091, 3952431, 4328853, 10100657, 12986559, 30301971, 90905913]

約数ペア:

[(1, 90905913), (3, 30301971), (7, 12986559), (9, 10100657), (21, 4328853), (23, 3952431), (43, 2114091), (63, 1442951), (69, 1317477), (129, 704697), (161, 564633), (207, 439159), (301, 302013), (387, 234899), (483, 188211), (903, 100671), (989, 91917), (1449, 62737), (1459, 62307), (2709, 33557), (2967, 30639), (4377, 20769), (6923, 13131), (8901, 10213)]