19870974

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{12689}}^1$

素因数の和:12729

約数の個数: 32

約数和(自身を含む): 45684000

約数和(自身を除く): 25813026

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 174, 261, 522, 783, 1566, 12689, 25378, 38067, 76134, 114201, 228402, 342603, 367981, 685206, 735962, 1103943, 2207886, 3311829, 6623658, 9935487, 19870974]

約数ペア:

[(1, 19870974), (2, 9935487), (3, 6623658), (6, 3311829), (9, 2207886), (18, 1103943), (27, 735962), (29, 685206), (54, 367981), (58, 342603), (87, 228402), (174, 114201), (261, 76134), (522, 38067), (783, 25378), (1566, 12689)]