420702903

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1$

素因数の和:657

約数の個数: 40

約数和(自身を含む): 642318336

約数和(自身を除く): 221615433

約数列:

[1, 3, 9, 27, 71, 81, 191, 213, 383, 573, 639, 1149, 1719, 1917, 3447, 5157, 5751, 10341, 13561, 15471, 27193, 31023, 40683, 73153, 81579, 122049, 219459, 244737, 366147, 658377, 734211, 1098441, 1975131, 2202633, 5193863, 5925393, 15581589, 46744767, 140234301, 420702903]

約数ペア:

[(1, 420702903), (3, 140234301), (9, 46744767), (27, 15581589), (71, 5925393), (81, 5193863), (191, 2202633), (213, 1975131), (383, 1098441), (573, 734211), (639, 658377), (1149, 366147), (1719, 244737), (1917, 219459), (3447, 122049), (5157, 81579), (5751, 73153), (10341, 40683), (13561, 31023), (15471, 27193)]