20918586

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{719}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 45239040

約数和(自身を除く): 24320454

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 373, 719, 746, 1119, 1438, 2157, 2238, 4314, 4849, 9347, 9698, 14547, 18694, 28041, 29094, 56082, 268187, 536374, 804561, 1609122, 3486431, 6972862, 10459293, 20918586]

約数ペア:

[(1, 20918586), (2, 10459293), (3, 6972862), (6, 3486431), (13, 1609122), (26, 804561), (39, 536374), (78, 268187), (373, 56082), (719, 29094), (746, 28041), (1119, 18694), (1438, 14547), (2157, 9698), (2238, 9347), (4314, 4849)]