201021555

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{877}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 384353280

約数和(自身を除く): 183331725

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 59, 105, 111, 177, 185, 259, 295, 413, 555, 777, 877, 885, 1239, 1295, 2065, 2183, 2631, 3885, 4385, 6139, 6195, 6549, 10915, 13155, 15281, 18417, 30695, 32449, 32745, 45843, 51743, 76405, 92085, 97347, 155229, 162245, 227143, 229215, 258715, 362201, 486735, 681429, 776145, 1086603, 1135715, 1811005, 1914491, 3407145, 5433015, 5743473, 9572455, 13401437, 28717365, 40204311, 67007185, 201021555]

約数ペア:

[(1, 201021555), (3, 67007185), (5, 40204311), (7, 28717365), (15, 13401437), (21, 9572455), (35, 5743473), (37, 5433015), (59, 3407145), (105, 1914491), (111, 1811005), (177, 1135715), (185, 1086603), (259, 776145), (295, 681429), (413, 486735), (555, 362201), (777, 258715), (877, 229215), (885, 227143), (1239, 162245), (1295, 155229), (2065, 97347), (2183, 92085), (2631, 76405), (3885, 51743), (4385, 45843), (6139, 32745), (6195, 32449), (6549, 30695), (10915, 18417), (13155, 15281)]