19982685

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21839}}^1$

素因数の和:21908

約数の個数: 16

約数和(自身を含む): 32497920

約数和(自身を除く): 12515235

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 21839, 65517, 109195, 327585, 1332179, 3996537, 6660895, 19982685]

約数ペア:

[(1, 19982685), (3, 6660895), (5, 3996537), (15, 1332179), (61, 327585), (183, 109195), (305, 65517), (915, 21839)]