20197265221

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1\times {\mathrm{4987}}^1$

素因数の和:5873

約数の個数: 32

約数和(自身を含む): 24989480960

約数和(自身を除く): 4792215739

約数列:

[1, 7, 19, 37, 133, 259, 703, 823, 4921, 4987, 5761, 15637, 30451, 34909, 94753, 109459, 184519, 213157, 578569, 663271, 1291633, 3505861, 4049983, 4104301, 24541027, 28730107, 77981719, 151859137, 545872033, 1063013959, 2885323603, 20197265221]

約数ペア:

[(1, 20197265221), (7, 2885323603), (19, 1063013959), (37, 545872033), (133, 151859137), (259, 77981719), (703, 28730107), (823, 24541027), (4921, 4104301), (4987, 4049983), (5761, 3505861), (15637, 1291633), (30451, 663271), (34909, 578569), (94753, 213157), (109459, 184519)]