262720497

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3821}}^1$

素因数の和:3921

約数の個数: 32

約数和(自身を含む): 395531136

約数和(自身を除く): 132810639

約数列:

[1, 3, 13, 39, 41, 43, 123, 129, 533, 559, 1599, 1677, 1763, 3821, 5289, 11463, 22919, 49673, 68757, 149019, 156661, 164303, 469983, 492909, 2036593, 2135939, 6109779, 6407817, 6736423, 20209269, 87573499, 262720497]

約数ペア:

[(1, 262720497), (3, 87573499), (13, 20209269), (39, 6736423), (41, 6407817), (43, 6109779), (123, 2135939), (129, 2036593), (533, 492909), (559, 469983), (1599, 164303), (1677, 156661), (1763, 149019), (3821, 68757), (5289, 49673), (11463, 22919)]