1720221

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 2419200

約数和(自身を除く): 698979

約数列:

[1, 3, 31, 53, 93, 159, 349, 1047, 1643, 4929, 10819, 18497, 32457, 55491, 573407, 1720221]

約数ペア:

[(1, 1720221), (3, 573407), (31, 55491), (53, 32457), (93, 18497), (159, 10819), (349, 4929), (1047, 1643)]