19800765

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15173}}^1$

素因数の和:15213

約数の個数: 24

約数和(自身を含む): 35507160

約数和(自身を除く): 15706395

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15173, 45519, 75865, 136557, 227595, 440017, 682785, 1320051, 2200085, 3960153, 6600255, 19800765]

約数ペア:

[(1, 19800765), (3, 6600255), (5, 3960153), (9, 2200085), (15, 1320051), (29, 682785), (45, 440017), (87, 227595), (145, 136557), (261, 75865), (435, 45519), (1305, 15173)]