20728974

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10501}}^1$

素因数の和:10560

約数の個数: 32

約数和(自身を含む): 48393216

約数和(自身を除く): 27664242

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974, 10501, 21002, 31503, 63006, 73507, 147014, 220521, 441042, 493547, 987094, 1480641, 2961282, 3454829, 6909658, 10364487, 20728974]

約数ペア:

[(1, 20728974), (2, 10364487), (3, 6909658), (6, 3454829), (7, 2961282), (14, 1480641), (21, 987094), (42, 493547), (47, 441042), (94, 220521), (141, 147014), (282, 73507), (329, 63006), (658, 31503), (987, 21002), (1974, 10501)]