221897585

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2819}}^1$

素因数の和:3017

約数の個数: 32

約数和(自身を含む): 329736960

約数和(自身を除く): 107839375

約数列:

[1, 5, 7, 13, 35, 65, 91, 173, 455, 865, 1211, 2249, 2819, 6055, 11245, 14095, 15743, 19733, 36647, 78715, 98665, 183235, 256529, 487687, 1282645, 2438435, 3413809, 6339931, 17069045, 31699655, 44379517, 221897585]

約数ペア:

[(1, 221897585), (5, 44379517), (7, 31699655), (13, 17069045), (35, 6339931), (65, 3413809), (91, 2438435), (173, 1282645), (455, 487687), (865, 256529), (1211, 183235), (2249, 98665), (2819, 78715), (6055, 36647), (11245, 19733), (14095, 15743)]