20128914

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^3\times {\mathrm{509}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 47338200

約数和(自身を除く): 27209286

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 234, 338, 507, 509, 1014, 1018, 1521, 1527, 2197, 3042, 3054, 4394, 4581, 6591, 6617, 9162, 13182, 13234, 19773, 19851, 39546, 39702, 59553, 86021, 119106, 172042, 258063, 516126, 774189, 1118273, 1548378, 2236546, 3354819, 6709638, 10064457, 20128914]

約数ペア:

[(1, 20128914), (2, 10064457), (3, 6709638), (6, 3354819), (9, 2236546), (13, 1548378), (18, 1118273), (26, 774189), (39, 516126), (78, 258063), (117, 172042), (169, 119106), (234, 86021), (338, 59553), (507, 39702), (509, 39546), (1014, 19851), (1018, 19773), (1521, 13234), (1527, 13182), (2197, 9162), (3042, 6617), (3054, 6591), (4394, 4581)]