20491638

素因数分解:

$2^1\times 3^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 41870304

約数和(自身を除く): 21378666

約数列:

[1, 2, 3, 6, 97, 137, 194, 257, 274, 291, 411, 514, 582, 771, 822, 1542, 13289, 24929, 26578, 35209, 39867, 49858, 70418, 74787, 79734, 105627, 149574, 211254, 3415273, 6830546, 10245819, 20491638]

約数ペア:

[(1, 20491638), (2, 10245819), (3, 6830546), (6, 3415273), (97, 211254), (137, 149574), (194, 105627), (257, 79734), (274, 74787), (291, 70418), (411, 49858), (514, 39867), (582, 35209), (771, 26578), (822, 24929), (1542, 13289)]