18913477

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 21320064

約数和(自身を除く): 2406587

約数列:

[1, 11, 61, 71, 397, 671, 781, 4331, 4367, 24217, 28187, 47641, 266387, 310057, 1719407, 18913477]

約数ペア:

[(1, 18913477), (11, 1719407), (61, 310057), (71, 266387), (397, 47641), (671, 28187), (781, 24217), (4331, 4367)]