20137545

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3469}}^1$

素因数の和:3526

約数の個数: 32

約数和(自身を含む): 36643200

約数和(自身を除く): 16505655

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3469, 5805, 10407, 17345, 31221, 52035, 93663, 149167, 156105, 447501, 468315, 745835, 1342503, 2237505, 4027509, 6712515, 20137545]

約数ペア:

[(1, 20137545), (3, 6712515), (5, 4027509), (9, 2237505), (15, 1342503), (27, 745835), (43, 468315), (45, 447501), (129, 156105), (135, 149167), (215, 93663), (387, 52035), (645, 31221), (1161, 17345), (1935, 10407), (3469, 5805)]