19520793

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:166

約数の個数: 36

約数和(自身を含む): 30413604

約数和(自身を除く): 10892811

約数列:

[1, 3, 9, 31, 37, 61, 93, 111, 183, 279, 333, 549, 961, 1147, 1891, 2257, 2883, 3441, 5673, 6771, 8649, 10323, 17019, 20313, 35557, 58621, 69967, 106671, 175863, 209901, 320013, 527589, 629703, 2168977, 6506931, 19520793]

約数ペア:

[(1, 19520793), (3, 6506931), (9, 2168977), (31, 629703), (37, 527589), (61, 320013), (93, 209901), (111, 175863), (183, 106671), (279, 69967), (333, 58621), (549, 35557), (961, 20313), (1147, 17019), (1891, 10323), (2257, 8649), (2883, 6771), (3441, 5673)]