21723585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1103}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 37836288

約数和(自身を除く): 16112703

約数列:

[1, 3, 5, 13, 15, 39, 65, 101, 195, 303, 505, 1103, 1313, 1515, 3309, 3939, 5515, 6565, 14339, 16545, 19695, 43017, 71695, 111403, 215085, 334209, 557015, 1448239, 1671045, 4344717, 7241195, 21723585]

約数ペア:

[(1, 21723585), (3, 7241195), (5, 4344717), (13, 1671045), (15, 1448239), (39, 557015), (65, 334209), (101, 215085), (195, 111403), (303, 71695), (505, 43017), (1103, 19695), (1313, 16545), (1515, 14339), (3309, 6565), (3939, 5515)]