21000547722

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{19841}}^1$

素因数の和:19972

約数の個数: 128

約数和(自身を含む): 54859161600

約数和(自身を除く): 33858613878

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 29, 33, 42, 58, 66, 77, 79, 87, 154, 158, 174, 203, 231, 237, 319, 406, 462, 474, 553, 609, 638, 869, 957, 1106, 1218, 1659, 1738, 1914, 2233, 2291, 2607, 3318, 4466, 4582, 5214, 6083, 6699, 6873, 12166, 13398, 13746, 16037, 18249, 19841, 25201, 32074, 36498, 39682, 48111, 50402, 59523, 75603, 96222, 119046, 138887, 151206, 176407, 218251, 277774, 352814, 416661, 436502, 529221, 575389, 654753, 833322, 1058442, 1150778, 1309506, 1527757, 1567439, 1726167, 3055514, 3134878, 3452334, 4027723, 4583271, 4702317, 6329279, 8055446, 9166542, 9404634, 10972073, 12083169, 12658558, 17241829, 18987837, 21944146, 24166338, 32916219, 34483658, 37975674, 44304953, 45455731, 51725487, 65832438, 88609906, 90911462, 103450974, 120692803, 132914859, 136367193, 241385606, 265829718, 272734386, 318190117, 362078409, 500013041, 636380234, 724156818, 954570351, 1000026082, 1500039123, 1909140702, 3000078246, 3500091287, 7000182574, 10500273861, 21000547722]

約数ペア:

[(1, 21000547722), (2, 10500273861), (3, 7000182574), (6, 3500091287), (7, 3000078246), (11, 1909140702), (14, 1500039123), (21, 1000026082), (22, 954570351), (29, 724156818), (33, 636380234), (42, 500013041), (58, 362078409), (66, 318190117), (77, 272734386), (79, 265829718), (87, 241385606), (154, 136367193), (158, 132914859), (174, 120692803), (203, 103450974), (231, 90911462), (237, 88609906), (319, 65832438), (406, 51725487), (462, 45455731), (474, 44304953), (553, 37975674), (609, 34483658), (638, 32916219), (869, 24166338), (957, 21944146), (1106, 18987837), (1218, 17241829), (1659, 12658558), (1738, 12083169), (1914, 10972073), (2233, 9404634), (2291, 9166542), (2607, 8055446), (3318, 6329279), (4466, 4702317), (4582, 4583271), (5214, 4027723), (6083, 3452334), (6699, 3134878), (6873, 3055514), (12166, 1726167), (13398, 1567439), (13746, 1527757), (16037, 1309506), (18249, 1150778), (19841, 1058442), (25201, 833322), (32074, 654753), (36498, 575389), (39682, 529221), (48111, 436502), (50402, 416661), (59523, 352814), (75603, 277774), (96222, 218251), (119046, 176407), (138887, 151206)]