87910473

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{220327}}^1$

素因数の和:220356

約数の個数: 16

約数和(自身を含む): 141009920

約数和(自身を除く): 53099447

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 220327, 660981, 1542289, 4186213, 4626867, 12558639, 29303491, 87910473]

約数ペア:

[(1, 87910473), (3, 29303491), (7, 12558639), (19, 4626867), (21, 4186213), (57, 1542289), (133, 660981), (399, 220327)]