21571326

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{383}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 33724674

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 149, 189, 298, 378, 383, 447, 766, 894, 1043, 1149, 1341, 2086, 2298, 2681, 2682, 3129, 3447, 4023, 5362, 6258, 6894, 8043, 8046, 9387, 10341, 16086, 18774, 20682, 24129, 28161, 48258, 56322, 57067, 72387, 114134, 144774, 171201, 342402, 399469, 513603, 798938, 1027206, 1198407, 1540809, 2396814, 3081618, 3595221, 7190442, 10785663, 21571326]

約数ペア:

[(1, 21571326), (2, 10785663), (3, 7190442), (6, 3595221), (7, 3081618), (9, 2396814), (14, 1540809), (18, 1198407), (21, 1027206), (27, 798938), (42, 513603), (54, 399469), (63, 342402), (126, 171201), (149, 144774), (189, 114134), (298, 72387), (378, 57067), (383, 56322), (447, 48258), (766, 28161), (894, 24129), (1043, 20682), (1149, 18774), (1341, 16086), (2086, 10341), (2298, 9387), (2681, 8046), (2682, 8043), (3129, 6894), (3447, 6258), (4023, 5362)]