18878902569

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{53309}}^1$

素因数の和:53462

約数の個数: 36

約数和(自身を含む): 29044887300

約数和(自身を除く): 10165984731

約数列:

[1, 3, 9, 19, 57, 109, 171, 327, 361, 981, 1083, 2071, 3249, 6213, 18639, 39349, 53309, 118047, 159927, 354141, 479781, 1012871, 3038613, 5810681, 9115839, 17432043, 19244549, 52296129, 57733647, 110402939, 173200941, 331208817, 993626451, 2097655841, 6292967523, 18878902569]

約数ペア:

[(1, 18878902569), (3, 6292967523), (9, 2097655841), (19, 993626451), (57, 331208817), (109, 173200941), (171, 110402939), (327, 57733647), (361, 52296129), (981, 19244549), (1083, 17432043), (2071, 9115839), (3249, 5810681), (6213, 3038613), (18639, 1012871), (39349, 479781), (53309, 354141), (118047, 159927)]