21778218

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:872

約数の個数: 96

約数和(自身を含む): 62000640

約数和(自身を除く): 40222422

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 33, 38, 42, 57, 63, 66, 77, 99, 114, 126, 133, 154, 171, 198, 209, 231, 266, 342, 399, 418, 462, 627, 693, 798, 827, 1197, 1254, 1386, 1463, 1654, 1881, 2394, 2481, 2926, 3762, 4389, 4962, 5789, 7443, 8778, 9097, 11578, 13167, 14886, 15713, 17367, 18194, 26334, 27291, 31426, 34734, 47139, 52101, 54582, 63679, 81873, 94278, 104202, 109991, 127358, 141417, 163746, 172843, 191037, 219982, 282834, 329973, 345686, 382074, 518529, 573111, 659946, 989919, 1037058, 1146222, 1209901, 1555587, 1979838, 2419802, 3111174, 3629703, 7259406, 10889109, 21778218]

約数ペア:

[(1, 21778218), (2, 10889109), (3, 7259406), (6, 3629703), (7, 3111174), (9, 2419802), (11, 1979838), (14, 1555587), (18, 1209901), (19, 1146222), (21, 1037058), (22, 989919), (33, 659946), (38, 573111), (42, 518529), (57, 382074), (63, 345686), (66, 329973), (77, 282834), (99, 219982), (114, 191037), (126, 172843), (133, 163746), (154, 141417), (171, 127358), (198, 109991), (209, 104202), (231, 94278), (266, 81873), (342, 63679), (399, 54582), (418, 52101), (462, 47139), (627, 34734), (693, 31426), (798, 27291), (827, 26334), (1197, 18194), (1254, 17367), (1386, 15713), (1463, 14886), (1654, 13167), (1881, 11578), (2394, 9097), (2481, 8778), (2926, 7443), (3762, 5789), (4389, 4962)]