20510766

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{19991}}^1$

素因数の和:20021

約数の個数: 32

約数和(自身を含む): 47980800

約数和(自身を除く): 27470034

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 19991, 39982, 59973, 119946, 179919, 359838, 379829, 539757, 759658, 1079514, 1139487, 2278974, 3418461, 6836922, 10255383, 20510766]

約数ペア:

[(1, 20510766), (2, 10255383), (3, 6836922), (6, 3418461), (9, 2278974), (18, 1139487), (19, 1079514), (27, 759658), (38, 539757), (54, 379829), (57, 359838), (114, 179919), (171, 119946), (342, 59973), (513, 39982), (1026, 19991)]