18927321

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 11485479

約数列:

[1, 3, 7, 21, 23, 69, 149, 161, 263, 447, 483, 789, 1043, 1841, 3129, 3427, 5523, 6049, 10281, 18147, 23989, 39187, 42343, 71967, 117561, 127029, 274309, 822927, 901301, 2703903, 6309107, 18927321]

約数ペア:

[(1, 18927321), (3, 6309107), (7, 2703903), (21, 901301), (23, 822927), (69, 274309), (149, 127029), (161, 117561), (263, 71967), (447, 42343), (483, 39187), (789, 23989), (1043, 18147), (1841, 10281), (3129, 6049), (3427, 5523)]