20153516649

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6440881}}^1$

素因数の和:6441040

約数の個数: 16

約数和(自身を含む): 30916233600

約数和(自身を除く): 10762716951

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6440881, 19322643, 45086167, 135258501, 959691269, 2879073807, 6717838883, 20153516649]

約数ペア:

[(1, 20153516649), (3, 6717838883), (7, 2879073807), (21, 959691269), (149, 135258501), (447, 45086167), (1043, 19322643), (3129, 6440881)]