21000377046

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{145757}}^1$

素因数の和:145869

約数の個数: 64

約数和(自身を含む): 47855266560

約数和(自身を除く): 26854889514

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 59, 66, 74, 111, 118, 177, 222, 354, 407, 649, 814, 1221, 1298, 1947, 2183, 2442, 3894, 4366, 6549, 13098, 24013, 48026, 72039, 144078, 145757, 291514, 437271, 874542, 1603327, 3206654, 4809981, 5393009, 8599663, 9619962, 10786018, 16179027, 17199326, 25798989, 32358054, 51597978, 59323099, 94596293, 118646198, 177969297, 189192586, 283788879, 318187531, 355938594, 567577758, 636375062, 954562593, 1909125186, 3500062841, 7000125682, 10500188523, 21000377046]

約数ペア:

[(1, 21000377046), (2, 10500188523), (3, 7000125682), (6, 3500062841), (11, 1909125186), (22, 954562593), (33, 636375062), (37, 567577758), (59, 355938594), (66, 318187531), (74, 283788879), (111, 189192586), (118, 177969297), (177, 118646198), (222, 94596293), (354, 59323099), (407, 51597978), (649, 32358054), (814, 25798989), (1221, 17199326), (1298, 16179027), (1947, 10786018), (2183, 9619962), (2442, 8599663), (3894, 5393009), (4366, 4809981), (6549, 3206654), (13098, 1603327), (24013, 874542), (48026, 437271), (72039, 291514), (144078, 145757)]