19478912

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{4909}}^1$

素因数の和:4954

約数の個数: 32

約数和(自身を含む): 40065600

約数和(自身を除く): 20586688

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 4909, 9818, 19636, 39272, 78544, 152179, 157088, 304358, 314176, 608716, 628352, 1217432, 2434864, 4869728, 9739456, 19478912]

約数ペア:

[(1, 19478912), (2, 9739456), (4, 4869728), (8, 2434864), (16, 1217432), (31, 628352), (32, 608716), (62, 314176), (64, 304358), (124, 157088), (128, 152179), (248, 78544), (496, 39272), (992, 19636), (1984, 9818), (3968, 4909)]