19905585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1877}}^1$

素因数の和:1993

約数の個数: 32

約数和(自身を含む): 36778752

約数和(自身を除く): 16873167

約数列:

[1, 3, 5, 7, 15, 21, 35, 101, 105, 303, 505, 707, 1515, 1877, 2121, 3535, 5631, 9385, 10605, 13139, 28155, 39417, 65695, 189577, 197085, 568731, 947885, 1327039, 2843655, 3981117, 6635195, 19905585]

約数ペア:

[(1, 19905585), (3, 6635195), (5, 3981117), (7, 2843655), (15, 1327039), (21, 947885), (35, 568731), (101, 197085), (105, 189577), (303, 65695), (505, 39417), (707, 28155), (1515, 13139), (1877, 10605), (2121, 9385), (3535, 5631)]