1991628

素因数分解:

$2^2\times 3^6\times {\mathrm{683}}^1$

素因数の和:705

約数の個数: 42

約数和(自身を含む): 5233284

約数和(自身を除く): 3241656

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 683, 729, 972, 1366, 1458, 2049, 2732, 2916, 4098, 6147, 8196, 12294, 18441, 24588, 36882, 55323, 73764, 110646, 165969, 221292, 331938, 497907, 663876, 995814, 1991628]

約数ペア:

[(1, 1991628), (2, 995814), (3, 663876), (4, 497907), (6, 331938), (9, 221292), (12, 165969), (18, 110646), (27, 73764), (36, 55323), (54, 36882), (81, 24588), (108, 18441), (162, 12294), (243, 8196), (324, 6147), (486, 4098), (683, 2916), (729, 2732), (972, 2049), (1366, 1458)]