20193753601

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1039}}^1\times {\mathrm{1979}}^1$

素因数の和:3109

約数の個数: 32

約数和(自身を含む): 24512716800

約数和(自身を除く): 4318963199

約数列:

[1, 7, 23, 61, 161, 427, 1039, 1403, 1979, 7273, 9821, 13853, 23897, 45517, 63379, 120719, 167279, 318619, 443653, 845033, 1457717, 2056181, 2776537, 10204019, 14393267, 19435759, 47292163, 125427041, 331045141, 877989287, 2884821943, 20193753601]

約数ペア:

[(1, 20193753601), (7, 2884821943), (23, 877989287), (61, 331045141), (161, 125427041), (427, 47292163), (1039, 19435759), (1403, 14393267), (1979, 10204019), (7273, 2776537), (9821, 2056181), (13853, 1457717), (23897, 845033), (45517, 443653), (63379, 318619), (120719, 167279)]