20484774

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{673}}^1$

素因数の和:789

約数の個数: 48

約数和(自身を含む): 47314800

約数和(自身を除く): 26830026

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 89, 114, 171, 178, 267, 342, 534, 673, 801, 1346, 1602, 1691, 2019, 3382, 4038, 5073, 6057, 10146, 12114, 12787, 15219, 25574, 30438, 38361, 59897, 76722, 115083, 119794, 179691, 230166, 359382, 539073, 1078146, 1138043, 2276086, 3414129, 6828258, 10242387, 20484774]

約数ペア:

[(1, 20484774), (2, 10242387), (3, 6828258), (6, 3414129), (9, 2276086), (18, 1138043), (19, 1078146), (38, 539073), (57, 359382), (89, 230166), (114, 179691), (171, 119794), (178, 115083), (267, 76722), (342, 59897), (534, 38361), (673, 30438), (801, 25574), (1346, 15219), (1602, 12787), (1691, 12114), (2019, 10146), (3382, 6057), (4038, 5073)]