21047418

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{55681}}^1$

素因数の和:55699

約数の個数: 32

約数和(自身を含む): 53454720

約数和(自身を除く): 32407302

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 55681, 111362, 167043, 334086, 389767, 501129, 779534, 1002258, 1169301, 1503387, 2338602, 3006774, 3507903, 7015806, 10523709, 21047418]

約数ペア:

[(1, 21047418), (2, 10523709), (3, 7015806), (6, 3507903), (7, 3006774), (9, 2338602), (14, 1503387), (18, 1169301), (21, 1002258), (27, 779534), (42, 501129), (54, 389767), (63, 334086), (126, 167043), (189, 111362), (378, 55681)]