19937628

素因数分解:

$2^2\times 3^2\times {\mathrm{521}}^1\times {\mathrm{1063}}^1$

素因数の和:1594

約数の個数: 36

約数和(自身を含む): 50542128

約数和(自身を除く): 30604500

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 521, 1042, 1063, 1563, 2084, 2126, 3126, 3189, 4252, 4689, 6252, 6378, 9378, 9567, 12756, 18756, 19134, 38268, 553823, 1107646, 1661469, 2215292, 3322938, 4984407, 6645876, 9968814, 19937628]

約数ペア:

[(1, 19937628), (2, 9968814), (3, 6645876), (4, 4984407), (6, 3322938), (9, 2215292), (12, 1661469), (18, 1107646), (36, 553823), (521, 38268), (1042, 19134), (1063, 18756), (1563, 12756), (2084, 9567), (2126, 9378), (3126, 6378), (3189, 6252), (4252, 4689)]