21014973

素因数分解:

$3^2\times 7^2\times {\mathrm{47653}}^1$

素因数の和:47673

約数の個数: 18

約数和(自身を含む): 35311614

約数和(自身を除く): 14296641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 47653, 142959, 333571, 428877, 1000713, 2334997, 3002139, 7004991, 21014973]

約数ペア:

[(1, 21014973), (3, 7004991), (7, 3002139), (9, 2334997), (21, 1000713), (49, 428877), (63, 333571), (147, 142959), (441, 47653)]