16400415

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{541}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 27472896

約数和(自身を除く): 11072481

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 541, 645, 705, 1623, 2021, 2705, 6063, 8115, 10105, 23263, 25427, 30315, 69789, 76281, 116315, 127135, 348945, 381405, 1093361, 3280083, 5466805, 16400415]

約数ペア:

[(1, 16400415), (3, 5466805), (5, 3280083), (15, 1093361), (43, 381405), (47, 348945), (129, 127135), (141, 116315), (215, 76281), (235, 69789), (541, 30315), (645, 25427), (705, 23263), (1623, 10105), (2021, 8115), (2705, 6063)]