31318707

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1481}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 51217920

約数和(自身を除く): 19899213

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 1481, 3021, 4443, 7049, 10367, 21147, 28139, 31101, 78493, 84417, 196973, 235479, 549451, 590919, 1491367, 1648353, 4474101, 10439569, 31318707]

約数ペア:

[(1, 31318707), (3, 10439569), (7, 4474101), (19, 1648353), (21, 1491367), (53, 590919), (57, 549451), (133, 235479), (159, 196973), (371, 84417), (399, 78493), (1007, 31101), (1113, 28139), (1481, 21147), (3021, 10367), (4443, 7049)]