21291210710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{839}}^1\times {\mathrm{32957}}^1$

素因数の和:33821

約数の個数: 64

約数和(自身を含む): 47839196160

約数和(自身を除く): 26547985450

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 839, 1678, 4195, 5873, 8390, 9229, 11746, 18458, 29365, 32957, 46145, 58730, 64603, 65914, 92290, 129206, 164785, 230699, 323015, 329570, 362527, 461398, 646030, 725054, 1153495, 1812635, 2306990, 2537689, 3625270, 5075378, 12688445, 25376890, 27650923, 55301846, 138254615, 193556461, 276509230, 304160153, 387112922, 608320306, 967782305, 1520800765, 1935564610, 2129121071, 3041601530, 4258242142, 10645605355, 21291210710]

約数ペア:

[(1, 21291210710), (2, 10645605355), (5, 4258242142), (7, 3041601530), (10, 2129121071), (11, 1935564610), (14, 1520800765), (22, 967782305), (35, 608320306), (55, 387112922), (70, 304160153), (77, 276509230), (110, 193556461), (154, 138254615), (385, 55301846), (770, 27650923), (839, 25376890), (1678, 12688445), (4195, 5075378), (5873, 3625270), (8390, 2537689), (9229, 2306990), (11746, 1812635), (18458, 1153495), (29365, 725054), (32957, 646030), (46145, 461398), (58730, 362527), (64603, 329570), (65914, 323015), (92290, 230699), (129206, 164785)]