221637585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 420577920

約数和(自身を除く): 198940335

約数列:

[1, 3, 5, 13, 15, 17, 37, 39, 51, 65, 85, 111, 139, 169, 185, 195, 221, 255, 417, 481, 507, 555, 629, 663, 695, 845, 1105, 1443, 1807, 1887, 2085, 2363, 2405, 2535, 2873, 3145, 3315, 5143, 5421, 6253, 7089, 7215, 8177, 8619, 9035, 9435, 11815, 14365, 15429, 18759, 23491, 24531, 25715, 27105, 30719, 31265, 35445, 40885, 43095, 66859, 70473, 77145, 87431, 92157, 93795, 106301, 117455, 122655, 153595, 200577, 262293, 318903, 334295, 352365, 399347, 437155, 460785, 531505, 869167, 1002885, 1136603, 1198041, 1311465, 1594515, 1996735, 2607501, 3409809, 4345835, 5683015, 5990205, 13037505, 14775839, 17049045, 44327517, 73879195, 221637585]

約数ペア:

[(1, 221637585), (3, 73879195), (5, 44327517), (13, 17049045), (15, 14775839), (17, 13037505), (37, 5990205), (39, 5683015), (51, 4345835), (65, 3409809), (85, 2607501), (111, 1996735), (139, 1594515), (169, 1311465), (185, 1198041), (195, 1136603), (221, 1002885), (255, 869167), (417, 531505), (481, 460785), (507, 437155), (555, 399347), (629, 352365), (663, 334295), (695, 318903), (845, 262293), (1105, 200577), (1443, 153595), (1807, 122655), (1887, 117455), (2085, 106301), (2363, 93795), (2405, 92157), (2535, 87431), (2873, 77145), (3145, 70473), (3315, 66859), (5143, 43095), (5421, 40885), (6253, 35445), (7089, 31265), (7215, 30719), (8177, 27105), (8619, 25715), (9035, 24531), (9435, 23491), (11815, 18759), (14365, 15429)]