1210221

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:302

約数の個数: 20

約数和(自身を含む): 1843072

約数和(自身を除く): 632851

約数列:

[1, 3, 9, 27, 67, 81, 201, 223, 603, 669, 1809, 2007, 5427, 6021, 14941, 18063, 44823, 134469, 403407, 1210221]

約数ペア:

[(1, 1210221), (3, 403407), (9, 134469), (27, 44823), (67, 18063), (81, 14941), (201, 6021), (223, 5427), (603, 2007), (669, 1809)]