20857554

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{701}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 50544000

約数和(自身を除く): 29686446

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 29, 38, 54, 57, 58, 87, 114, 171, 174, 261, 342, 513, 522, 551, 701, 783, 1026, 1102, 1402, 1566, 1653, 2103, 3306, 4206, 4959, 6309, 9918, 12618, 13319, 14877, 18927, 20329, 26638, 29754, 37854, 39957, 40658, 60987, 79914, 119871, 121974, 182961, 239742, 359613, 365922, 386251, 548883, 719226, 772502, 1097766, 1158753, 2317506, 3476259, 6952518, 10428777, 20857554]

約数ペア:

[(1, 20857554), (2, 10428777), (3, 6952518), (6, 3476259), (9, 2317506), (18, 1158753), (19, 1097766), (27, 772502), (29, 719226), (38, 548883), (54, 386251), (57, 365922), (58, 359613), (87, 239742), (114, 182961), (171, 121974), (174, 119871), (261, 79914), (342, 60987), (513, 40658), (522, 39957), (551, 37854), (701, 29754), (783, 26638), (1026, 20329), (1102, 18927), (1402, 14877), (1566, 13319), (1653, 12618), (2103, 9918), (3306, 6309), (4206, 4959)]