21601839

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 12958161

約数列:

[1, 3, 7, 21, 29, 79, 87, 203, 237, 449, 553, 609, 1347, 1659, 2291, 3143, 6873, 9429, 13021, 16037, 35471, 39063, 48111, 91147, 106413, 248297, 273441, 744891, 1028659, 3085977, 7200613, 21601839]

約数ペア:

[(1, 21601839), (3, 7200613), (7, 3085977), (21, 1028659), (29, 744891), (79, 273441), (87, 248297), (203, 106413), (237, 91147), (449, 48111), (553, 39063), (609, 35471), (1347, 16037), (1659, 13021), (2291, 9429), (3143, 6873)]