40990719

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2909}}^1$

素因数の和:2991

約数の個数: 32

約数和(自身を含む): 69281280

約数和(自身を除く): 28290561

約数列:

[1, 3, 7, 11, 21, 33, 61, 77, 183, 231, 427, 671, 1281, 2013, 2909, 4697, 8727, 14091, 20363, 31999, 61089, 95997, 177449, 223993, 532347, 671979, 1242143, 1951939, 3726429, 5855817, 13663573, 40990719]

約数ペア:

[(1, 40990719), (3, 13663573), (7, 5855817), (11, 3726429), (21, 1951939), (33, 1242143), (61, 671979), (77, 532347), (183, 223993), (231, 177449), (427, 95997), (671, 61089), (1281, 31999), (2013, 20363), (2909, 14091), (4697, 8727)]