21669417

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1489}}^1$

素因数の和:1523

約数の個数: 48

約数和(自身を含む): 40766400

約数和(自身を除く): 19096983

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1489, 1617, 2079, 4467, 4851, 10423, 13401, 14553, 16379, 31269, 40203, 49137, 72961, 93807, 114653, 147411, 218883, 281421, 343959, 442233, 656649, 802571, 1031877, 1969947, 2407713, 3095631, 7223139, 21669417]

約数ペア:

[(1, 21669417), (3, 7223139), (7, 3095631), (9, 2407713), (11, 1969947), (21, 1031877), (27, 802571), (33, 656649), (49, 442233), (63, 343959), (77, 281421), (99, 218883), (147, 147411), (189, 114653), (231, 93807), (297, 72961), (441, 49137), (539, 40203), (693, 31269), (1323, 16379), (1489, 14553), (1617, 13401), (2079, 10423), (4467, 4851)]