21642348840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1493}}^1\times {\mathrm{17257}}^1$

素因数の和:18771

約数の個数: 128

約数和(自身を含む): 74256341760

約数和(自身を除く): 52613992920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1493, 2986, 4479, 5972, 7465, 8958, 10451, 11944, 14930, 17257, 17916, 20902, 22395, 29860, 31353, 34514, 35832, 41804, 44790, 51771, 52255, 59720, 62706, 69028, 83608, 86285, 89580, 103542, 104510, 120799, 125412, 138056, 156765, 172570, 179160, 207084, 209020, 241598, 250824, 258855, 313530, 345140, 362397, 414168, 418040, 483196, 517710, 603995, 627060, 690280, 724794, 966392, 1035420, 1207990, 1254120, 1449588, 1811985, 2070840, 2415980, 2899176, 3623970, 4831960, 7247940, 14495880, 25764701, 51529402, 77294103, 103058804, 128823505, 154588206, 180352907, 206117608, 257647010, 309176412, 360705814, 386470515, 515294020, 541058721, 618352824, 721411628, 772941030, 901764535, 1030588040, 1082117442, 1442823256, 1545882060, 1803529070, 2164234884, 2705293605, 3091764120, 3607058140, 4328469768, 5410587210, 7214116280, 10821174420, 21642348840]

約数ペア:

[(1, 21642348840), (2, 10821174420), (3, 7214116280), (4, 5410587210), (5, 4328469768), (6, 3607058140), (7, 3091764120), (8, 2705293605), (10, 2164234884), (12, 1803529070), (14, 1545882060), (15, 1442823256), (20, 1082117442), (21, 1030588040), (24, 901764535), (28, 772941030), (30, 721411628), (35, 618352824), (40, 541058721), (42, 515294020), (56, 386470515), (60, 360705814), (70, 309176412), (84, 257647010), (105, 206117608), (120, 180352907), (140, 154588206), (168, 128823505), (210, 103058804), (280, 77294103), (420, 51529402), (840, 25764701), (1493, 14495880), (2986, 7247940), (4479, 4831960), (5972, 3623970), (7465, 2899176), (8958, 2415980), (10451, 2070840), (11944, 1811985), (14930, 1449588), (17257, 1254120), (17916, 1207990), (20902, 1035420), (22395, 966392), (29860, 724794), (31353, 690280), (34514, 627060), (35832, 603995), (41804, 517710), (44790, 483196), (51771, 418040), (52255, 414168), (59720, 362397), (62706, 345140), (69028, 313530), (83608, 258855), (86285, 250824), (89580, 241598), (103542, 209020), (104510, 207084), (120799, 179160), (125412, 172570), (138056, 156765)]