20101795

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 28901376

約数和(自身を除く): 8799581

約数列:

[1, 5, 7, 31, 35, 97, 155, 191, 217, 485, 679, 955, 1085, 1337, 3007, 3395, 5921, 6685, 15035, 18527, 21049, 29605, 41447, 92635, 105245, 129689, 207235, 574337, 648445, 2871685, 4020359, 20101795]

約数ペア:

[(1, 20101795), (5, 4020359), (7, 2871685), (31, 648445), (35, 574337), (97, 207235), (155, 129689), (191, 105245), (217, 92635), (485, 41447), (679, 29605), (955, 21049), (1085, 18527), (1337, 15035), (3007, 6685), (3395, 5921)]