21770109

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 32389760

約数和(自身を除く): 10619651

約数列:

[1, 3, 9, 67, 79, 201, 237, 457, 603, 711, 1371, 4113, 5293, 15879, 30619, 36103, 47637, 91857, 108309, 275571, 324927, 2418901, 7256703, 21770109]

約数ペア:

[(1, 21770109), (3, 7256703), (9, 2418901), (67, 324927), (79, 275571), (201, 108309), (237, 91857), (457, 47637), (603, 36103), (711, 30619), (1371, 15879), (4113, 5293)]