21115605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{201101}}^1$

素因数の和:201116

約数の個数: 16

約数和(自身を含む): 38611584

約数和(自身を除く): 17495979

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 201101, 603303, 1005505, 1407707, 3016515, 4223121, 7038535, 21115605]

約数ペア:

[(1, 21115605), (3, 7038535), (5, 4223121), (7, 3016515), (15, 1407707), (21, 1005505), (35, 603303), (105, 201101)]