21478784

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5413}}^1$

素因数の和:5458

約数の個数: 32

約数和(自身を含む): 44178240

約数和(自身を除く): 22699456

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5413, 10826, 21652, 43304, 86608, 167803, 173216, 335606, 346432, 671212, 692864, 1342424, 2684848, 5369696, 10739392, 21478784]

約数ペア:

[(1, 21478784), (2, 10739392), (4, 5369696), (8, 2684848), (16, 1342424), (31, 692864), (32, 671212), (62, 346432), (64, 335606), (124, 173216), (128, 167803), (248, 86608), (496, 43304), (992, 21652), (1984, 10826), (3968, 5413)]