20708961

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2447}}^1$

素因数の和:2501

約数の個数: 32

約数和(自身を含む): 35094528

約数和(自身を除く): 14385567

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2447, 2821, 7341, 8463, 17129, 31811, 51387, 75857, 95433, 222677, 227571, 530999, 668031, 986141, 1592997, 2958423, 6902987, 20708961]

約数ペア:

[(1, 20708961), (3, 6902987), (7, 2958423), (13, 1592997), (21, 986141), (31, 668031), (39, 530999), (91, 227571), (93, 222677), (217, 95433), (273, 75857), (403, 51387), (651, 31811), (1209, 17129), (2447, 8463), (2821, 7341)]