20121662043

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{399739}}^1$

素因数の和:399816

約数の個数: 48

約数和(自身を含む): 35919037440

約数和(自身を除く): 15797375397

約数列:

[1, 3, 7, 9, 17, 21, 47, 51, 63, 119, 141, 153, 329, 357, 423, 799, 987, 1071, 2397, 2961, 5593, 7191, 16779, 50337, 399739, 1199217, 2798173, 3597651, 6795563, 8394519, 18787733, 20386689, 25183557, 47568941, 56363199, 61160067, 131514131, 142706823, 169089597, 319391461, 394542393, 428120469, 958174383, 1183627179, 2235740227, 2874523149, 6707220681, 20121662043]

約数ペア:

[(1, 20121662043), (3, 6707220681), (7, 2874523149), (9, 2235740227), (17, 1183627179), (21, 958174383), (47, 428120469), (51, 394542393), (63, 319391461), (119, 169089597), (141, 142706823), (153, 131514131), (329, 61160067), (357, 56363199), (423, 47568941), (799, 25183557), (987, 20386689), (1071, 18787733), (2397, 8394519), (2961, 6795563), (5593, 3597651), (7191, 2798173), (16779, 1199217), (50337, 399739)]