21951560

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1873}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 49586040

約数和(自身を除く): 27634480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 1873, 2344, 2930, 3746, 5860, 7492, 9365, 11720, 14984, 18730, 37460, 74920, 548789, 1097578, 2195156, 2743945, 4390312, 5487890, 10975780, 21951560]

約数ペア:

[(1, 21951560), (2, 10975780), (4, 5487890), (5, 4390312), (8, 2743945), (10, 2195156), (20, 1097578), (40, 548789), (293, 74920), (586, 37460), (1172, 18730), (1465, 14984), (1873, 11720), (2344, 9365), (2930, 7492), (3746, 5860)]