42890991

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 69266400

約数和(自身を除く): 26375409

約数列:

[1, 3, 11, 13, 33, 39, 61, 121, 143, 149, 183, 363, 429, 447, 671, 793, 1573, 1639, 1937, 2013, 2379, 4719, 4917, 5811, 7381, 8723, 9089, 18029, 21307, 22143, 26169, 27267, 54087, 63921, 95953, 99979, 118157, 234377, 287859, 299937, 354471, 703131, 1099769, 1299727, 3299307, 3899181, 14296997, 42890991]

約数ペア:

[(1, 42890991), (3, 14296997), (11, 3899181), (13, 3299307), (33, 1299727), (39, 1099769), (61, 703131), (121, 354471), (143, 299937), (149, 287859), (183, 234377), (363, 118157), (429, 99979), (447, 95953), (671, 63921), (793, 54087), (1573, 27267), (1639, 26169), (1937, 22143), (2013, 21307), (2379, 18029), (4719, 9089), (4917, 8723), (5811, 7381)]