20121747597

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{529673}}^1$

素因数の和:529759

約数の個数: 40

約数和(自身を含む): 34865261376

約数和(自身を除く): 14743513779

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 469, 567, 603, 1407, 1809, 4221, 5427, 12663, 37989, 529673, 1589019, 3707711, 4767057, 11123133, 14301171, 33369399, 35488091, 42903513, 100108197, 106464273, 248416637, 300324591, 319392819, 745249911, 958178457, 2235749733, 2874535371, 6707249199, 20121747597]

約数ペア:

[(1, 20121747597), (3, 6707249199), (7, 2874535371), (9, 2235749733), (21, 958178457), (27, 745249911), (63, 319392819), (67, 300324591), (81, 248416637), (189, 106464273), (201, 100108197), (469, 42903513), (567, 35488091), (603, 33369399), (1407, 14301171), (1809, 11123133), (4221, 4767057), (5427, 3707711), (12663, 1589019), (37989, 529673)]