19487728

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7207}}^1$

素因数の和:7241

約数の個数: 30

約数和(自身を含む): 40890984

約数和(自身を除く): 21403256

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7207, 14414, 28828, 57656, 93691, 115312, 187382, 374764, 749528, 1217983, 1499056, 2435966, 4871932, 9743864, 19487728]

約数ペア:

[(1, 19487728), (2, 9743864), (4, 4871932), (8, 2435966), (13, 1499056), (16, 1217983), (26, 749528), (52, 374764), (104, 187382), (169, 115312), (208, 93691), (338, 57656), (676, 28828), (1352, 14414), (2704, 7207)]