19685403

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:880

約数の個数: 32

約数和(自身を含む): 31180800

約数和(自身を除く): 11495397

約数列:

[1, 3, 9, 27, 29, 31, 87, 93, 261, 279, 783, 811, 837, 899, 2433, 2697, 7299, 8091, 21897, 23519, 24273, 25141, 70557, 75423, 211671, 226269, 635013, 678807, 729089, 2187267, 6561801, 19685403]

約数ペア:

[(1, 19685403), (3, 6561801), (9, 2187267), (27, 729089), (29, 678807), (31, 635013), (87, 226269), (93, 211671), (261, 75423), (279, 70557), (783, 25141), (811, 24273), (837, 23519), (899, 21897), (2433, 8091), (2697, 7299)]