21739935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1051}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 39992832

約数和(自身を除く): 18252897

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 197, 591, 985, 1051, 1379, 2955, 3153, 4137, 5255, 6895, 7357, 15765, 20685, 22071, 36785, 110355, 207047, 621141, 1035235, 1449329, 3105705, 4347987, 7246645, 21739935]

約数ペア:

[(1, 21739935), (3, 7246645), (5, 4347987), (7, 3105705), (15, 1449329), (21, 1035235), (35, 621141), (105, 207047), (197, 110355), (591, 36785), (985, 22071), (1051, 20685), (1379, 15765), (2955, 7357), (3153, 6895), (4137, 5255)]