20218863

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1021}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 32965632

約数和(自身を除く): 12746769

約数列:

[1, 3, 7, 21, 23, 41, 69, 123, 161, 287, 483, 861, 943, 1021, 2829, 3063, 6601, 7147, 19803, 21441, 23483, 41861, 70449, 125583, 164381, 293027, 493143, 879081, 962803, 2888409, 6739621, 20218863]

約数ペア:

[(1, 20218863), (3, 6739621), (7, 2888409), (21, 962803), (23, 879081), (41, 493143), (69, 293027), (123, 164381), (161, 125583), (287, 70449), (483, 41861), (861, 23483), (943, 21441), (1021, 19803), (2829, 7147), (3063, 6601)]