21673216

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2731}}^1$

素因数の和:2778

約数の個数: 36

約数和(自身を含む): 44673664

約数和(自身を除く): 23000448

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2731, 3968, 5462, 7936, 10924, 21848, 43696, 84661, 87392, 169322, 174784, 338644, 349568, 677288, 699136, 1354576, 2709152, 5418304, 10836608, 21673216]

約数ペア:

[(1, 21673216), (2, 10836608), (4, 5418304), (8, 2709152), (16, 1354576), (31, 699136), (32, 677288), (62, 349568), (64, 338644), (124, 174784), (128, 169322), (248, 87392), (256, 84661), (496, 43696), (992, 21848), (1984, 10924), (2731, 7936), (3968, 5462)]