21098763

素因数分解:

$3^2\times 7^2\times {\mathrm{47843}}^1$

素因数の和:47863

約数の個数: 18

約数和(自身を含む): 35452404

約数和(自身を除く): 14353641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 47843, 143529, 334901, 430587, 1004703, 2344307, 3014109, 7032921, 21098763]

約数ペア:

[(1, 21098763), (3, 7032921), (7, 3014109), (9, 2344307), (21, 1004703), (49, 430587), (63, 334901), (147, 143529), (441, 47843)]