668103633

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 1013423400

約数和(自身を除く): 345319767

約数列:

[1, 3, 9, 27, 81, 149, 197, 281, 447, 591, 843, 1341, 1773, 2529, 4023, 5319, 7587, 12069, 15957, 22761, 29353, 41869, 55357, 88059, 125607, 166071, 264177, 376821, 498213, 792531, 1130463, 1494639, 2377593, 3391389, 4483917, 8248193, 24744579, 74233737, 222701211, 668103633]

約数ペア:

[(1, 668103633), (3, 222701211), (9, 74233737), (27, 24744579), (81, 8248193), (149, 4483917), (197, 3391389), (281, 2377593), (447, 1494639), (591, 1130463), (843, 792531), (1341, 498213), (1773, 376821), (2529, 264177), (4023, 166071), (5319, 125607), (7587, 88059), (12069, 55357), (15957, 41869), (22761, 29353)]