21168378

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1697}}^1$

素因数の和:1729

約数の個数: 80

約数和(自身を含む): 59171904

約数和(自身を除く): 38003526

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 77, 81, 99, 126, 154, 162, 189, 198, 231, 297, 378, 462, 567, 594, 693, 891, 1134, 1386, 1697, 1782, 2079, 3394, 4158, 5091, 6237, 10182, 11879, 12474, 15273, 18667, 23758, 30546, 35637, 37334, 45819, 56001, 71274, 91638, 106911, 112002, 130669, 137457, 168003, 213822, 261338, 274914, 320733, 336006, 392007, 504009, 641466, 784014, 962199, 1008018, 1176021, 1512027, 1924398, 2352042, 3024054, 3528063, 7056126, 10584189, 21168378]

約数ペア:

[(1, 21168378), (2, 10584189), (3, 7056126), (6, 3528063), (7, 3024054), (9, 2352042), (11, 1924398), (14, 1512027), (18, 1176021), (21, 1008018), (22, 962199), (27, 784014), (33, 641466), (42, 504009), (54, 392007), (63, 336006), (66, 320733), (77, 274914), (81, 261338), (99, 213822), (126, 168003), (154, 137457), (162, 130669), (189, 112002), (198, 106911), (231, 91638), (297, 71274), (378, 56001), (462, 45819), (567, 37334), (594, 35637), (693, 30546), (891, 23758), (1134, 18667), (1386, 15273), (1697, 12474), (1782, 11879), (2079, 10182), (3394, 6237), (4158, 5091)]