21327747

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53453}}^1$

素因数の和:53482

約数の個数: 16

約数和(自身を含む): 34210560

約数和(自身を除く): 12882813

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53453, 160359, 374171, 1015607, 1122513, 3046821, 7109249, 21327747]

約数ペア:

[(1, 21327747), (3, 7109249), (7, 3046821), (19, 1122513), (21, 1015607), (57, 374171), (133, 160359), (399, 53453)]