21338298

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{509}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 49406760

約数和(自身を除く): 28068462

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 137, 153, 274, 306, 411, 509, 822, 1018, 1233, 1527, 2329, 2466, 3054, 4581, 4658, 6987, 8653, 9162, 13974, 17306, 20961, 25959, 41922, 51918, 69733, 77877, 139466, 155754, 209199, 418398, 627597, 1185461, 1255194, 2370922, 3556383, 7112766, 10669149, 21338298]

約数ペア:

[(1, 21338298), (2, 10669149), (3, 7112766), (6, 3556383), (9, 2370922), (17, 1255194), (18, 1185461), (34, 627597), (51, 418398), (102, 209199), (137, 155754), (153, 139466), (274, 77877), (306, 69733), (411, 51918), (509, 41922), (822, 25959), (1018, 20961), (1233, 17306), (1527, 13974), (2329, 9162), (2466, 8653), (3054, 6987), (4581, 4658)]