21523554

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1559}}^1$

素因数の和:1639

約数の個数: 48

約数和(自身を含む): 51105600

約数和(自身を除く): 29582046

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 59, 78, 117, 118, 177, 234, 354, 531, 767, 1062, 1534, 1559, 2301, 3118, 4602, 4677, 6903, 9354, 13806, 14031, 20267, 28062, 40534, 60801, 91981, 121602, 182403, 183962, 275943, 364806, 551886, 827829, 1195753, 1655658, 2391506, 3587259, 7174518, 10761777, 21523554]

約数ペア:

[(1, 21523554), (2, 10761777), (3, 7174518), (6, 3587259), (9, 2391506), (13, 1655658), (18, 1195753), (26, 827829), (39, 551886), (59, 364806), (78, 275943), (117, 183962), (118, 182403), (177, 121602), (234, 91981), (354, 60801), (531, 40534), (767, 28062), (1062, 20267), (1534, 14031), (1559, 13806), (2301, 9354), (3118, 6903), (4602, 4677)]