27720819

素因数分解:

$3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{911}}^1$

素因数の和:957

約数の個数: 48

約数和(自身を含む): 49904640

約数和(自身を除く): 22183821

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 441, 483, 621, 911, 1127, 1323, 1449, 2733, 3381, 4347, 6377, 8199, 10143, 19131, 20953, 24597, 30429, 44639, 57393, 62859, 133917, 146671, 172179, 188577, 401751, 440013, 565731, 1026697, 1205253, 1320039, 3080091, 3960117, 9240273, 27720819]

約数ペア:

[(1, 27720819), (3, 9240273), (7, 3960117), (9, 3080091), (21, 1320039), (23, 1205253), (27, 1026697), (49, 565731), (63, 440013), (69, 401751), (147, 188577), (161, 172179), (189, 146671), (207, 133917), (441, 62859), (483, 57393), (621, 44639), (911, 30429), (1127, 24597), (1323, 20953), (1449, 19131), (2733, 10143), (3381, 8199), (4347, 6377)]