20621696

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5197}}^1$

素因数の和:5242

約数の個数: 32

約数和(自身を含む): 42415680

約数和(自身を除く): 21793984

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5197, 10394, 20788, 41576, 83152, 161107, 166304, 322214, 332608, 644428, 665216, 1288856, 2577712, 5155424, 10310848, 20621696]

約数ペア:

[(1, 20621696), (2, 10310848), (4, 5155424), (8, 2577712), (16, 1288856), (31, 665216), (32, 644428), (62, 332608), (64, 322214), (124, 166304), (128, 161107), (248, 83152), (496, 41576), (992, 20788), (1984, 10394), (3968, 5197)]