20553318

素因数分解:

$2^1\times 3^3\times {\mathrm{257}}^1\times {\mathrm{1481}}^1$

素因数の和:1749

約数の個数: 32

約数和(自身を含む): 45882720

約数和(自身を除く): 25329402

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 257, 514, 771, 1481, 1542, 2313, 2962, 4443, 4626, 6939, 8886, 13329, 13878, 26658, 39987, 79974, 380617, 761234, 1141851, 2283702, 3425553, 6851106, 10276659, 20553318]

約数ペア:

[(1, 20553318), (2, 10276659), (3, 6851106), (6, 3425553), (9, 2283702), (18, 1141851), (27, 761234), (54, 380617), (257, 79974), (514, 39987), (771, 26658), (1481, 13878), (1542, 13329), (2313, 8886), (2962, 6939), (4443, 4626)]