20918478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10597}}^1$

素因数の和:10656

約数の個数: 32

約数和(自身を含む): 48835584

約数和(自身を除く): 27917106

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974, 10597, 21194, 31791, 63582, 74179, 148358, 222537, 445074, 498059, 996118, 1494177, 2988354, 3486413, 6972826, 10459239, 20918478]

約数ペア:

[(1, 20918478), (2, 10459239), (3, 6972826), (6, 3486413), (7, 2988354), (14, 1494177), (21, 996118), (42, 498059), (47, 445074), (94, 222537), (141, 148358), (282, 74179), (329, 63582), (658, 31791), (987, 21194), (1974, 10597)]