20715678711

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2083}}^1\times {\mathrm{12143}}^1$

素因数の和:14252

約数の個数: 48

約数和(自身を含む): 36848587776

約数和(自身を除く): 16132909065

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 2083, 6249, 12143, 14581, 18747, 27079, 36429, 43743, 81237, 85001, 109287, 131229, 157859, 189553, 243711, 255003, 473577, 568659, 765009, 1105013, 1420731, 1705977, 3315039, 9945117, 25293869, 75881607, 177057083, 227644821, 328820297, 531171249, 986460891, 1593513747, 2301742079, 2959382673, 6905226237, 20715678711]

約数ペア:

[(1, 20715678711), (3, 6905226237), (7, 2959382673), (9, 2301742079), (13, 1593513747), (21, 986460891), (39, 531171249), (63, 328820297), (91, 227644821), (117, 177057083), (273, 75881607), (819, 25293869), (2083, 9945117), (6249, 3315039), (12143, 1705977), (14581, 1420731), (18747, 1105013), (27079, 765009), (36429, 568659), (43743, 473577), (81237, 255003), (85001, 243711), (109287, 189553), (131229, 157859)]