18494163

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 29707920

約数和(自身を除く): 11213757

約数列:

[1, 3, 9, 19, 27, 57, 61, 81, 171, 183, 197, 513, 549, 591, 1159, 1539, 1647, 1773, 3477, 3743, 4941, 5319, 10431, 11229, 12017, 15957, 31293, 33687, 36051, 93879, 101061, 108153, 228323, 303183, 324459, 684969, 973377, 2054907, 6164721, 18494163]

約数ペア:

[(1, 18494163), (3, 6164721), (9, 2054907), (19, 973377), (27, 684969), (57, 324459), (61, 303183), (81, 228323), (171, 108153), (183, 101061), (197, 93879), (513, 36051), (549, 33687), (591, 31293), (1159, 15957), (1539, 12017), (1647, 11229), (1773, 10431), (3477, 5319), (3743, 4941)]